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16These are some of the characters from ''Manga/MyBrideIsAMermaid'' and tropes that are associated with them.
17
18This page is currently under construction. Any contributions are appreciated.
19
20[[foldercontrol]]
21
22[[folder: Multi-Character Tropes]]
23
24* AdultsAreUseless: Other than Masa and Ren, they only contribute to problems. Even then, they sometimes do, but usually by accident.
25->''"What is wrong with the adults in my life? I might as well go steal a motorcycle."''
26-->--'''Nagasumi Michishio'''
27* ArtShift: Whether it's to SuperDeformed or to ''Manga/FistOfTheNorthStar'' it's always for comedy.
28* BattleAura: When someone generates one of these, it's usually played for laughs.
29* BizarreAlienBiology: When exposed to water a merfolk's legs will turn into fins.
30* CurtainsMatchTheWindow: Sun has light brown hair and eyes, Lunar has pink hair and eyes... the list goes on.
31* CuteMonsterGirl: Female mermaids in mermaid form are entirely human above the waist.
32* InvoluntaryShapeshifting: Young mermaids cannot maintain their legs if they get wet.
33* LoveDodecahedron: Most of the female characters [[spoiler: with the exception of Saturn and Jupiter, both of whom are gay,]] fall for Nagasumi.
34* MakeMeWannaShout: Female mermaids can use their voice as a weapon.
35* MermaidProblem: Downplayed. Adult mermaids can transform their tails into legs at will and younger ones can still maintain human legs until their legs get wet.
36* NewTransferStudent: Starting with Sun because her husband goes to that school.
37* OurMermaidsAreDifferent: Teenagers can pass for human most of the time and adults can pass for human all the time.
38* ThemeNaming: A lot of mermaids have the name of an important body of water in their family name and a celestial object as their given one.
39* ThreesomeSubtext: Nagasumi, Sun and Lunar, who all live together. Especially so in the manga, where Lunar outright says she wants to stay with both of them forever.
40* VoiceOfTheLegion: Whenever a female mermaid uses her voice to attack, they can speak as if many voices are heard at once.
41* WhyDidItHaveToBeSnakes: Most mermaids (since they are technically fish) are afraid of cats. Most of them get over this fear as they grow up.
42
43[[/folder]]
44
45
46!Protagonists
47[[folder:Both]]
48* BattleCouple: At the end of the series for the FinalBattle when they confront the final villain together.
49* ChastityCouple: They're engaged by the end of the first episode but for the bulk of the series they're no more intimate than HoldingHands.
50* InterspeciesRomance: Nagasumi's a human, Sun's a mermaid.
51* OfficialCouple: The fulcrum of the plot is their engagement.
52* RescueRomance: Played with; they first meet when Sun saves Nagasumi from drowning, but they don't genuinely fall in love until later.
53* ShotgunWedding: It was either get married or one of them would have to die.
54* SleepCute: In episode 13 [[spoiler:after the mafia war turned singing festival wore them out.]]
55[[/folder]]
56
57[[folder:Nagasumi Michishio]]
58[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/nagasumi_michishio_9221.jpg]]
59->'''Voiced by:''' Creator/TakahiroMizushima (Japanese), Creator/ToddHaberkorn (English)
60
61A high school student from Saitama who nearly drowned during his holiday at Setouchi. He was rescued by Sun and subsequently had to marry her so neither would be executed for breaking the Masquerade.
62----
63* EleventhHourSuperpower: In the final episode of the anime, it's revealed that he can go into his SuperMode without Sun singing the Song of Heroes. This, among other things, allows him to turn himself into a [[Manga/FistOfTheNorthStar Kenshiro]] {{Expy}}.
64* ActionSurvivor: Nagasumi only becomes badass because [[EverythingTryingToKillYou everyone is trying to kill him]].
65* AmbiguouslyBi: He undoubtedly loves Sun, but he seems to hold…''something'' for Masa.
66* AndThisIsFor: Sun, naturally, in the anime's finale.
67* AttackOfThe50FootWhatever: In Episode 11 after drinking a health drink that was only meant for mermaids. The affair makes him GenreSavvy because he never trusts a mermaid drink (or drink offered by a mermaid) again.
68* BadassNormal: He's a normal human that lives with superpowered mermaids. Most of them try (and fail) to kill him.
69* BatmanCanBreatheInSpace: Nagasumi gets blasted to the surface of the moon in the anime. [[RuleOfFunny Physics would spoil the fun for that one.]]
70* BulletCatch: Performs several in the anime's finale and one of them with his teeth! [[spoiler:The OhCrap face it inspires in the BigBad is fantastic.]]
71* ButtMonkey: He's the source of almost all the show's slapstick humor, with Saru filling in the rest.
72* CherryBlossoms: Episode 26 shows you can get them for playing too much with Setouchi.
73* ChickMagnet: Sun, Lunar, Mawari, Chiyo, Akeno, Satori, Maki, Fuki, and Maruko have all expressed feelings for Nagasumi.
74* CrouchingMoronHiddenBadass: He's generally a ButtMonkey to several characters, but when needed, he seems to be a somewhat capable fighter. He even manages to simultaneously dodge both Lunar's and Sun's fathers when both of them attacked him at the same time. He also TookALevelInBadass in the anime's climax.
75* EmpoweredBadassNormal: In the anime, the mermaids (and himself, for that matter) note how he's becoming "progressively less human" as the series progresses. This involves: [[AntiMagic resistance to mermaid singing]], a SpiderSense, and the ability to trigger a SuperMode without Sun's Song of Heroes. In the manga the reason for his immunity is due to Sun's [[MakeMeWannaShout Howling Voice]] eroding his hearing.
76* IdiotHair: It's a threat-detecting radar for him in the anime, [[AvertedTrope and thus not a sign of idiocy]].
77* JerkassBall: In order for the plot of Episodes 25 and 26 to kick into gear, Nagasumi had to be uncharacteristically douchey towards Sun by being dismissive towards her, saying all the wrong things, and refusing to apologize after he offended Sun, though he got better after realizing she was in danger.
78* MeaningfulName: 満潮 (''Michishio'') means "high tide," while 永澄 (''Nagasumi'') means "clear water."
79* NiceGuy: Matures into this for Sun. At the start he was kind of a brat.
80* NotWhatItLooksLike: Gets dragged into this kind of situations A LOT. Drying off a mermaid's legs (the only way they can resume human form) looks like rubbing her thighs.
81* OnlySaneMan: "Am I the only one who thinks this is a little weird?" Everyone else takes the weirdness in stride.
82* OrdinaryHighSchoolStudent: He is normal at the starts of the series but is clearly part of the Seto Gang by the end.
83* ThePowerOfLove: In the anime's finale his voice [[spoiler: reached Sun despite her being drugged]] and immediately afterward he [[spoiler: activated the SuperMode without Sun's Song of Heroes to power him up.]] "I don't need it. Just being near you fills me with unlimited power!"
84* RadialAssKicking: He does this during Episode 8 while affected by Sun's Song of Heroes... as a stick figure.
85* RestoredMyFaithinHumanity: When Gozaburou and his men try killing him repeatedly during a festival, he gets a justified OhCrap moment upon realizing the situation, [[BaitTheDog until he gets food from the one vendor who seems nice to him]]. [[YanktheDogsChain It turns out to be a way for Sun's father to threaten to kill him in the darkest way possible via a phone hidden inside of the food.]]
86* SacredFirstKiss: With Masa. The show WON'T let you forget it.[[note]]To clarify, Masa gave Nagasumi mouth-to-mouth after Nagasumi nearly drowned. Nagasumi still considers it a "stolen first kiss."[[/note]]
87* SecretKeeper: For Sun and later the mermaid world as a whole for the fact that mermaids exist.
88* SpiderSense: By the fifth episode, he's dodging Maki's attacks in his sleep. He can also use it to detect when someone's about to break TheMasquerade.
89* SuplexFinisher: He does this to Shark Fujishiro when he is attacked during the festival; grabs him ''by the teeth'' and then slams him.
90* TookALevelInBadass: Pretty weak in most episodes but steps up in the anime's finale. [[spoiler: In Chapter 60 of the manga he reveals being chased and beaten up by Sun's father has made him superhumanly fast, agile, and durable.]]
91* TooKinkyToTorture: When Lunar tries to punish him by tying him up and repeatedly jamming her heel into his crotch from behind, he ''enjoys'' it.
92* UnwantedHarem: Sun, her Mom (though she's more of a ShipperOnDeck for her daughter that's [[ItAmusedMe having fun at his expense]]), Lunar, Mawari, the Class Rep, and even Akeno. In the manga Saru's little sister Satori, Maki, Maki's little sister Fuki, and Sun's childhood friend Maruko join in on it as well.
93* UselessBoyfriend: He is generally helpless in a fight against merpeople, and starts off as the polar opposite of Sun's [[WomenPreferStrongMen romantic ideal]]. When he apologizes for it, she tells him she likes him just the way he is.
94* WrestlerInAllOfUs: The famous "Shark Suplex".
95[[/folder]]
96
97[[folder:Sun Seto]]
98[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/sun_seto_3668.jpg]]
99->'''Voiced by:''' Creator/HalkoMomoi (Japanese), Creator/AlexisTipton (English)
100
101The daughter of Gozaburo & Ren Seto, the leaders of the Seto Clan. She saved Nagasumi's life, but in doing so broke the [[TheMasquerade mermaid's code of secrecy]]. Rather than having one of them die, Sun [[TakeAThirdOption went with a third option]] in marrying him.
102----
103* ActionGirl: In the words of her fiancé: "Once she gets a sword in her hands she's like a completely different person".
104* AllGirlsWantBadBoys: One episode has Nagasumi imbibe a love potion that makes him look like he's every girl's type. When Sun looks at him in that state, she sees a [[Manga/JoJosBizarreAdventure Jotaro Kujo]] {{Expy}}.
105* AlliterativeName: '''S'''un '''S'''eto. This only applies in English, though. (Japanese would look at is as '''Se'''to '''Sa'''n.)
106* AlwaysSomeoneBetter: Was this to Lunar growing up, as Sun always beat her in singing contests. To this day, Lunar ''still'' holds a grudge.
107* BadassAdorable: She's sweet and clumsy and cute but also the daughter of the mafia.
108* BettyAndVeronica: She is the Veronica (mermaid yakuza) to Mawari (human childhood friend) and the Betty to Lunar (glamorous pop star).
109* BewareTheNiceOnes: Sun may be a YamatoNadeshiko, but she is also a MafiaPrincess and master swordswoman more-than willing to fight in the defense of her loved ones. In another example, Maki, her tiny bodyguard, usually doesn't seem to respect anyone but Sun and Gozaburo. After she went a little too far in trying to reveal Akeno as a mermaid, Sun scolded her about it and Maki seems genuinely terrified during that lecture.
110* BreastExpansion: Ironically, her breasts actually look ''larger'' than normal when she's in "Sunpachi Setojima" mode.
111* ButForMeItWasTuesday: When Lunar reminds her of the singing contest she lost against her as a child, Sun sheepishly admits that, with everything that happened to her since then, she forgot about Lunar.
112* BuxomBeautyStandard: Saru lists her large bust size as one of the reasons she's so popular.
113* CallingTheOldManOut: A minor example; when Shark Fujishiro attacks Nagasumi at the Obon festival under her father's orders, Sun demands that Gozaburo apologize to Nagasumi, telling him that she "can't respect a father who won't even act like a man."
114* CharacterCatchphrase: "The alternate way of reading 'Ninkyo' (Chivalry)...is 'Ningyo' (Mermaid)!" In the English dub it becomes "Because honor among thieves is honor under the sea!"
115* CherryBlossomGirl: She is associated with cherry blossoms, the main love interest, and a YamatoNadeshiko.
116* CherryBlossoms: [[ItRunsInTheFamily She gets it from her mom]], and busts them out whenever she's feeling dramatic.
117* CuteClumsyGirl: When she's nervous she gets klutzy, which is quite a problem when she's around water, as it turns her back into a mermaid.
118* DamselOutOfDistress: In the climax of the anime, she is [[spoiler: kidnapped and drugged by Yoshiuo]]. Then she [[spoiler: breaks free of her drug-induced state on her own after Nagasumi gives his AnguishedDeclarationOfLove toward her, and joins him as a BattleCouple against Yoshiuo.]]
119* FaceDeathWithDignity: She is fully prepared to accept death as a result of saving Nagasumi and breaking TheMasquerade. Thankfully, Ren decides to TakeAThirdOption.
120* FirstGirlWins: First girl introduced and the one Nagasumi stays devoted to.
121* HairIntakes: Her hairstyle has a pair of what kinda look like cat ears.
122* HiddenDepths: Sun is very knowledgeable about the Yakuza world and the different criminal activities they operate, which makes sense considering she'll be the next head of the Seto clan.
123* HighPressureEmotion: After trying different poses in front of a mirror with a pair of cat ears, her face heats up like a steam boiler due to embarrassment.
124* HimeCut: She's a YamatoNadeshiko and heiress to a yakuza family. To highlight these traits, she has full bangs, bra strap length sidelocks, and mid-thigh length straight hair.
125* InnocentFanserviceGirl: She has no clue as to just how attractive she is to so many people.
126* InstantFanClub: Latent until Lunar showed up. Then suddenly she had her own militant faction that was willing to kill her fiancé for more of her attention.
127* JapaneseDelinquent: Her Sunpachi Setojima persona involves her invoking as many of the tropes associated with this as possible from clothing to speech patterns.
128* LudicrousMeleeAccuracy: Sun is so skilled a swordswoman that she can cut through clothes and leave the person wearing them unscathed.
129* MadnessMantra: When every other mermaid character (except Jupiter) and Saru's little sister announce they are in love with Nagasumi, Sun begins chanting "I have faith in Nagasumi..." in a CreepyMonotone until she collapses from stress.
130* MagicalGirlfriend: Sun is a sweet and beautiful mermaid who saves the life of the normal human Nagasumi and by the rules of her clan, she becomes his devoted fiancée so neither of them have to die. This results in a sheer amount of craziness for Nagasumi.
131* MagicMusic: She demonstrates the power to put people to sleep and send Nagasumi into SuperMode.
132* MasterSwordswoman: Was trained in the Shiranui-style of kendo by Masa, and is skilled enough to match Akeno and take on the entire Edomae group ''by herself''.
133* MeaningfulName: 燦 (''San'') means "brilliant" or "resplendant," reflecting her generally upbeat personality as well. It's also a homophone for the English word "sun".
134* MegatonPunch: Her [[MakeMeWannaShout Howling Voice]] served this purpose during a misunderstanding in the second and fourth episodes.
135* MsFanservice: Has her moments, like in episode 3 where [[https://static.tvtropes.org/pmwiki/pub/images/sun_seto_swimsuit2.png she has a bikini]] for a good portion of time.
136* NiceGirl: She’s completely understanding towards Nagasumi and loves him very much. She also has a close friendship with others.
137* NiceJobBreakingItHero: In the process of stopping Nagasumi's ShotgunWedding to Lunar in episode 13, she nearly restarts the gang war between the Seto and Edomae crime families as a result. Fortunately, she and Lunar put a stop to it with a [[ItMakesSenseInContext song]].
138* OneWomanArmy: In episode 13, she takes on and beats a large chunk of the Edomae group by herself.
139* PowerIncontinence: She accidentally destroys Nagasumi's poor eardrums with her screams more than once.
140* PunnyName: Nagasumi sees her face superimposed on the sun. In Western order, her name sounds like [[GratuitousEnglish "Sunset"]].
141* {{Sarashi}}: When she wears her white battle kimono and when she did her delinquent roleplay outfit; an odd juxtaposition, isn't it?
142* SeashellBra: In her first appearance where she's in full mermaid guise.
143* SeriousBusiness: Whenever Sun busts out the rose petals and starts talking about chivalry and mermaids/honor among thieves being honor under the sea, she's entered this mode.
144* SilkHidingSteel: Don't let her YamatoNadeshiko personality fool you. Underneath her warm and gentle demeanor lies a rough and tough Yakuza that won't hesitate to fight for what she wants.
145* SongOfCourage: One of her songs is the "Song of Heroes" which can empower Nagasumi. In the manga she also uses it on her father when he's fighting Lunar's Papa.
146* SpeakNowOrForeverHoldYourPeace: Sun crashes Nagasumi's wedding to Lunar dressed in a white kimono, sarashi, and carrying a katana, and announces her intent to take back her fiancé by force, even if it means renouncing her family ties and declaring war on the Edomae syndicate.
147* SpellMyNameWithAnS: Her name more directly transliterates as "San", but is officially written like the English word "sun" (and pronounced as such in the English dub) as a bit of multilingual wordplay.
148* TestosteronePoisoning: Sun's "Sunpachi Setojima" persona consists of a "military officer" beard, tattered pants, a BadassLongcoat, sarashi, an extremely ragged CommissarCap, and proclaiming RealMenEatMeat - is both cringe-worthy and funny. She assumes the persona whenever she's hit by the Last Amazoness' arrows as well.
149* VerbalTic:
150** Tends to begin or end her sentences with "ya' see." During the arc in which the students are going to war over Sun and Lunar, the Sun faction adopts this tic as well.
151** In the English dub, her dialect can be seen as almost of a Texan influence, often dropping the "g" at the end of "-ing" words, and saying "ya'" instead of "you." (In fact, most members of the Seto gang do this.)
152* WeddingSmashers: When Lunar ropes Nagasumi into a ShotgunWedding, Sun sinks into a HeroicBSOD before crashing the wedding wearing sarashi and a white kimono and wielding a katana, renounces her family ties, and declares war on the Edomae group in order to take back her fiancé.
153* WomenPreferStrongMen: Sun's romantic ideal is embodied in her "[[TestosteronePoisoning Sunpachi Setojima]]" persona, though she brushes aside Nagasumi's dejection at being the opposite.
154* YakuzaPrincess: Her family operates in the Seto region.
155* YamatoNadeshiko: While Sun may be a bit rough-spoken, she's big on honor, family tradition, and the family business, as well as being very devoted to her fiancé.
156[[/folder]]
157
158!Classmates
159
160[[folder:Mawari Zenigata]]
161[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/mawari_zenigata_9623.jpg]]
162->'''Voiced by:''' Creator/RikaMorinaga (Japanese), Creator/CaitlinGlass (English)
163
164The daughter of the chief of police in Nagasumi's hometown, and a childhood friend of Nagasumi, whom she has a crush on.
165----
166* TheBeastMaster: She can summon a horde of cats with a whistle. These ''are'' beasts in the eyes of merfolk. It's downplayed because even though she can summon them, she can't ''control'' them.
167-->'''Saru''': ''I had no idea Mawari had gotten so good at controlling caaatttssss!''
168* CharacterCatchphrase: "Must Mawari teach you the rules of this society?"
169** In the English dub, it's altered to "Maybe you need some lessons on the rules of this society!"
170* ChildhoodFriendRomance: She's a long-time friend of Nagasumi, and harbors a crush on him.
171* ControlFreak: She's called the "Demonic" head of the Disciplinary Committee for a reason.
172* CovertPervert: Was a bit ''too'' enthusiastic about [[SkinshipGrope checking out]] the Class Rep's three sizes in the bathhouse, and told Nagasumi she was disappointed she hadn't been able to grope Sun as well in the anime. However, she does ''not'' think GirlOnGirlIsHot when it's happening in a public setting.
173* CrotchGrabSexCheck: Does this to herself after being hit by one of the Last Amazoness' arrows, and is [[GenderBender horrified by what she finds]].
174* ForcedTransformation: Is temporarily [[MermanityEnsues transformed into a mermaid]] after accidentally using a magic seashell meant for Nagasumi. The others pass it off as a dream once she reverts to being human, but the narration hints she kept quiet after realizing what she'd seen was supposed to be a secret.
175* GenkiGirl: She pursues her "Sense of Justice" with great energy!
176* HeelRealization: Has one after Nagasumi gives her a [[TheReasonYouSuckSpeech broadside]] while she's out trying to prove Sun is, in fact, [[ComicallyMissingThePoint a fish]]. It's also aided when Sun saves her by using [[MakeMeWannaShout Howling Voice]] to knock aside a car that almost creams her. For the most part, she calms down around Sun after this point.
177* HeterosexualLifePartners: With Class Rep.
178* IWantMyBelovedToBeHappy: Mawari is implied to have a crush on Nagasumi for a long time, but seeing that he and Sun are happy together, she more or less sighs, puts on a smile and gets on with her life.
179* LawfulStupid: Played for laughs. Due to her desire to be a "good cop", she tries to be Lawful Good, but due to her overzealousness, she veers towards this instead.
180* PunnyName: Mawari's given name is a pun to "Omawari-san", a gentle and polite way to say policeman in Japanese.
181* SecretSecretKeeper: It's strongly implied she knows the truth about Sun and the merfolk world, but chooses to keep quiet about it.
182* SympatheticInspectorAntagonist: Friends with the other characters, but summoning cats, when the mermaids are terrified of them, makes her an antagonist sometimes. She's not an actual police official, because she's too young, but plans to become one when she grows up. She gets bonus points for sharing a name with the former [[Anime/LupinIII Trope Namer.]]
183* ThirdPersonPerson: Refers to herself in the third person when shouting her CharacterCatchPhrase.
184[[/folder]]
185
186[[folder:Hideyoshi Sarutobi (Saru/Chimp)]]
187[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/hideyoshi_sarutobi_4881.jpg]]
188->'''Voiced by:''' Masahito Yabe (Japanese), Creator/AnthonyBowling (English)
189
190Nagasumi's monkey-like, perverted friend.
191----
192* AmbiguouslyBi: The end of the manga has narration saying that he and Kai "realize something" as he's [[IntimateLotionApplication rubbing sun tan lotion on Kai's back]], with the hint being that they have romantic feelings for each other.
193* BarehandedBladeBlock: He attempts one in Episode 17 but fails.
194* BromanticFoil: To Nagasumi, who he is best friends with, and is much more perverted.
195* ButtMonkey: Is the victim of slapstick violence even more than Nagasumi.
196* CrouchingMoronHiddenBadass: Dishes out a fair few pearls of wisdom, in particular when he's in his "Hermit" mode.
197* {{Expy}}: Of Hideyoshi from ''Manga/TheLawOfUeki'', they even share the same given name.
198* TheFriendNobodyLikes: Most of the people he hangs out with, including his alleged best friend Nagasumi, treat him with disdain due to his selfish and perverted nature. Kai is the sole exception.
199* HeterosexualLifePartners: With Kai.
200* HighPressureEmotion: Steam erupts from his nose while he's drooling over Akeno in episode 16.
201* HotbloodedSideburns: In a perverted fashion. Mostly they just make him look like a monkey.
202* HypercompetentSidekick: For Kai. Interestingly, he gains hypercompetence by ''becoming'' Kai's sidekick. Otherwise he's just a perverted monkey.
203* IFightForTheStrongestSide: Tried to betray Kai for Akeno, because she is hot and tougher than Kai. He returns to Kai's service when Akeno kicks him to the curb.
204* {{Keet}}: He's a hyperactive little monkey.
205* LovableSexManiac: Keeps trying to persuade Nagasumi to peek on the girls changing[=/=]bathing, and is referred to as "Ero Roshi" on occasion.
206* NoOneCouldSurviveThat: In Episode 17 he attempts a BarehandedBladeBlock but Kai nails him ''right through the skull'' with his sword. Shockingly, he's shown to be alive a little while later with only a few minor bandages applied to his head.
207* OffscreenTeleportation: Vanishes [[ScrewThisImOuttaHere whenever trouble shows up]]. He is later shown to have FlashStep-levels of speed whenever Kai requires his presence.
208* AStormIsComing: Plays this trope to perfection in Episode 8 in his 'hermit' mode when predicting a battle.
209* TooKinkyToTorture: Chimp's one concern above all else is sex and anything relating to it. This proves itself doubly so when Akeno attempts to crush him with her foot to get him away from her and his only response is, "Oh, yeah! I've been naughty; I deserve to be punished!"
210[[/folder]]
211
212[[folder:Lunar Edomae]]
213[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/lunar_edomae_6732.jpg]]
214->'''Voiced by:''' Creator/SakuraNogawa (Japanese), Creator/CheramiLeigh (English)
215
216A childhood rival of Sun. She has used the powers of her mermaid voice to become an idol singer.
217----
218* AlwaysSecondBest: Feels this way about herself in comparison to Sun because Sun always beat her in singing contests growing up.
219* AmbiguouslyBi: In the manga her LoveEpiphany regarding Nagasumi extends to her rival Sun, with Lunar thinking that she wants to be with both of them forever, and chapter 39 reiterates that they are of equal importance to her. Whether these feelings are platonic or romantic is never delved into, although [[{{Yandere}} Saturn]] certainly suspects the latter.
220* BitchInSheepsClothing: Downplayed. She pretends to be a {{Kawaiiko}} so she can get the adoration of her fans. Her real personality is quite jerkish, but she's still a good person.
221* BoobsAndButtPose: Is seen posing like this in her official artwork. It's promotional work after all.
222* BookDumb: All of her tests are zeros on one occasion.
223* ButNotTooForeign: Half-Japanese.
224* CuteAndPsycho: When first introduced, she flipped from being a {{Kawaiiko}} to acting AxCrazy like a strobe light. She still has her moments, [[spoiler: and gets this from her mother]].
225* DisproportionateRetribution: She's spiteful to Sun simply because Sun always beat her in singing contests when they were kids and she's [[GreenEyedMonster jealous of all Sun has that she lacks.]]
226* FriendlessBackground: Sun was her OnlyFriend growing up.
227* FreudianExcuse: Her mother [[MissingMom seemingly abandoning her]] made her become an idol because she thinks that if she's famous enough then her mother will see her on TV and return to her. This fact, the emotional distance between her and her father, and her lack of friends also fuels her rivalry with Sun.
228* GirlishPigtails: Her hair is tied up into twintails to match her {{Kawaiiko}} idol persona.
229* GlamourFailure: Occasionally slips out of her stage persona when at school, usually when Sun gets her riled up.
230* GreenEyedMonster: She confesses to Nagasumi that her resentment of Sun stems from her having so much more than she does, especially a full, loving family.
231* GroinAttack: Does this to Nagasumi to "[[TooKinkyToTorture punish]]" him.
232* HatePlague: Her Song of War causes uncontrollable rage and aggression in those who hear it.
233* HatesTheJobLovesTheLimelight: Offstage, she can often be a [[BitchInSheepsClothing pain to deal with]]. Onstage and/or while on camera and in public, she puts up a cutesy facade.
234* HighPressureEmotion: When being "mistaken" for being "very fond" of Sun by her classmates, her entire face turned red and steamed.
235* IdolSinger: Number 1 in Japan. She did it to prove her superiority to Sun.
236* InferioritySuperiorityComplex: She acts so egotistical to cover for how deep down she fears that she's pathetic and has nothing going for her when compared to Sun.
237* InstantFanClub: Deconstructed. Because she's an idol singer famous nation-wide, her fanclub was already present and organized before she transferred into Nagasumi's school.
238* ItsAllAboutMe: She thinks Sun married Nagasumi to flaunt this fact in her face, disregarding the whole 'marry into the mermaid family or die' thing.
239* IWantMyBelovedToBeHappy: Partially why she ultimately accepts Nagasumi and Sun as a couple and gives up pursuing Nagasumi is that she wants Nagasumi to be happy. The other part, as she admits to herself, is that she also wants ''Sun'' to be happy.
240* JerkWithAHeartOfGold: She acts haughty and abrasive to everyone, but there's a NiceGirl underneath it all.
241* LoveEpiphany: At first Lunar was going to marry Nagasumi solely because she was "stealing" him away from Sun, but after Nagasumi gives a passionate speech to her dad she seems to genuinely fall for him. In the manga, [[https://66.media.tumblr.com/5f7afa2f000f74ad8d1ece91b6eb6f04/d3148070713f3de8-6c/s540x810/1da4d1eb0d94062ed5f4b2a2234c89fb86c317e1.png the epiphany actually extends to Sun as well.]]
242* MafiaPrincess: Her dad is the head of the Edomae gang.
243* MagicMusic: Her favorite is the "Song of War", which turns its audience into mindless warriors. [[spoiler: She learned it from her mother as a ''lullaby''.]]
244* MissingMom: According to her father, Lunar's mom ran away from her family. [[spoiler: Chapter 66 reveals, 10 years prior, Lunar's mom got sentenced to prison for attempting to run over Lunar Papa (among other charges) for being more attentive to the company than his family. She was offered a completely waived sentence but refused out of spite. In the process, she also divorced him.]]
245* MistakenForGay: Saturn hates Lunar just as much as she hates Nagasumi because she believes Lunar wants Sun.
246* MistressAndServantBoy: She tries to force Nagasumi into one of these relationships. She insists on calling him "manservant" rather than his given name.
247* MyGodWhatHaveIDone: After Lunar exploits her father walking in on [[NotWhatItLooksLike Nagasumi rubbing her naked butt]] to rope him in to a ShotgunWedding, she inwardly berates herself for being so cruel to Sun after seeing how despondent she is, even though her own ego causes her to rub the incident in Sun's face.
248* NoblewomansLaugh: A habit of hers when not using her façade as a cutesy idol, and [[LampshadeHanging lampshaded]] by other characters.
249* {{Ojou}}: From her dad's status ''and'' her own as a pop star, she's treated like nobility.
250* RoseHairedSweetie: ZigZagged. Her stage persona is a pink-haired {{kawaiiko}} to appeal to fans. If you dig beneath that she's a {{Jerkass}}, but if you dig beneath ''that'' (as Sun, Nagasumi, and Nagasumi's mom did) she's sweet again.
251* RoyalWe: The only time she ever speaks in the singular is when Nagasumi teaches her a lesson in humility.
252* SpellMyNameWithAnS: Lunar/Luna/Runa. Luna is her real name, and Lunar is her stage name.
253* {{Tsundere}}: Mellows in the second half of the series into this, for both Nagasumi ''and'' Sun. For the former, she'll openly flirt with but violently deny actually liking him. For the latter we have this gem:
254-->--"We rearranged our schedule to see you, but don't get the wrong idea! It's not because we wanted to have fun with you!"
255* UnknownRival: For Sun, who thinks they're best friends. They're VitriolicBestBuds later in the series.
256* VitriolicBestBuds: With Sun, the vitriol coming mostly from Lunar. For all her claims of hate it eventually becomes clear that Sun is very important to her.
257* {{Yandere}}: Behaves like one early on, up to and including kidnapping. How much it was for Nagasumi's love and how much was to one-up Sun is open for debate but she certainly had extreme measures.
258[[/folder]]
259
260[[folder:Class President]]
261[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/class_president.jpg]]
262->'''Voiced by:''' Creator/NorikoRikimaru (Japanese), Creator/KateBristol (English)
263
264The class president of Nagasumi's class.
265----
266* BeautifulAllAlong: [[https://static.tvtropes.org/pmwiki/pub/images/class_president.jpg Before]] and [[https://static.tvtropes.org/pmwiki/pub/images/classpresidentafter.jpg after]]. The difference in her appearance is amazing, is it not?
267* BlindWithoutEm: She spent a day with Nagasumi and didn't realize it because she didn't have her glasses.
268* ButtMonkey: Out of all the girls in Nagasumi's UnwantedHarem, she's definitely the unluckiest.
269* CharacterCatchPhrase: "Yes! Amazoness!" as the Last Amazoness.
270* ClassRepresentative: Everyone thinks this is her name because it is her role in class.
271* CovertPervert: When she says Nagasumi has become more manly (episode 15), the two incidents she cites involve him being naked.
272* DroppedGlasses: In episode 15, she loses her glasses when Nagasumi accidentally steps on them.
273* EnergyBow: As the Last Amazoness she has a bow that fires magical GenderBender energy arrows.
274* EveryoneCallsHimBarkeep: She is never referred to by her real name (much as she wants to be), only 'Iincho'. Her real name is finally revealed at the end of volume 16; [[spoiler:it's Chiyo Iin.]]
275* FauxYay: The Class President pretends to be a lesbian to overcome her shyness.
276* GirlishPigtails: Her hair is kept in two low bunches.
277* HeterosexualLifePartners: With Mawari.
278* HopelessSuitor: To Nagasumi, who only has eyes for Sun. Made worse, since he doesn't even know their class rep's name, or that she's even interested in him.
279* MistakenForGay: After accidentally confessing to Sun with her hair down and glasses off, she is forced to adopt the "Last Amazoness" persona to cope.
280* MsFanservice: ''Tries'' to be this during the sports festival, and is put off when Lunar out-sexies her.
281* NotEvilJustMisunderstood: Despite being portrayed as the enemy of all men as the Last Amazoness, all she wants is to be able to confess to Nagasumi.
282* OpaqueNerdGlasses: She wears a pair of large round glasses that hide her eyes.
283* PunnyName: [[spoiler:As revealed in the last page of the manga, her name is Chiyo Iin. When written in hiragana, her name can be read as 'Iincho' (class president).]]
284* ShrinkingViolet: Painfully shy, and to make it worse, the one time she built the courage to overcome it, she ended up [[spoiler:confessing her love to ''Sun'' by accident.]]
285* TransformationSequence: Near the end of episode 21 into the "Last Amazoness".
286[[/folder]]
287
288[[folder:Kai Mikawa]]
289[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kai_mikawa_2641.jpg]]
290->'''Voiced by:''' Creator/DaisukeOno (Japanese), Creator/EricVale (English)
291
292The future head of the multi-million dollar Mikawa Corporation and a killer whale mermaid from another mermaid group.
293----
294* AlwaysSomeoneBetter: Compared to Nagasumi, he's rich, handsome and childhood friends with Sun. Despite this, however, he rarely ever poses much of a threat to him, barring the occasional moment where he's swinging a sword at Nagasumi.
295* AmbiguouslyBi: The end of the manga has narration saying that he and Chimp "realize something" as Chimp is [[IntimateLotionApplication rubbing sun tan lotion on his back]], with the hint being that they have romantic feelings for each other.
296* ButtMonkey: Being a severely agoraphobic whaleman who is also an uncontrollable LargeHam will do that to you.
297* ChickMagnet: Every unnamed girl at Nagasumi's school is in love with him. It helps that he's loaded.
298* CoolSword: One with a long history, but he doesn't get to use it until the anime's climax.
299* CrouchingMoronHiddenBadass: He's a MasterSwordsman once he gets past his agoraphobia.
300* CustomUniform: His outfit resembles a navy admiral's uniform.
301* EntitledBastard: Being [[RichBastard rich]], he thinks he's owed the best of everything. In Episode 24, it takes him a while to find out that everyone's treating him super nicely because they think he's dying of a terminal illness; he just assumes that they finally wised up and are treating him the way he "deserves" to be treated.
302* EveryoneHasStandards: He's arrogant, condescending, and quick-tempered, but even he knows how much of a bastard Yoshiuo is.
303* {{Expy}}: Clearly meant to be a parody of Shuutarou Mendou from ''Manga/UruseiYatsura'', being from a wealthy background, carrying a sword, and with the latter's crippling claustrophobia inverted into crippling agoraphobia.
304* GreenEyedMonster: Jealous of Nagasumi due to his ability to find genuine love and friendship in others while he has to buy it with his money.
305* FriendlessBackground: Much like Lunar, Sun was the only one he had in his childhood that he considered a true friend.
306* HeterosexualLifePartners: With Saru.
307* {{Hikikomori}}: After a traumatic experience in a vast desert when he was young, he has developed a severe case of agoraphobia and never truly went outdoors until transferring to Nagasumi's class. He's described as a "submarine hikikomori" in his joint ImageSong with Saru.
308* InstantFanclub: All of the unimportant girls flock to him the moment he appears.
309* JerkassRealization: He has one in Episode 24 when, while thinking he's dying of a terminal illness, he realizes how much the people around him cared for him and how he took that for granted. It comedically becomes an IgnoredEpiphany after it's learned he wasn't ill after all and the [[StatusQuoIsGod status quo reasserts itself.]]
310* JerkWithAHeartOfGold: He's not so bad once you get past his obnoxiousness. He and Nagasumi actually tend to get along well when they're not fighting.
311* LargeHam: When he's not proudly shoving his wealth in your face he's screaming about his fear of the outdoors.
312* LonelyRichKid: He's in love with Sun because she didn't care about money or status. That and she played a weird version of house with him.
313* MistakenForDying: In Episode 24 everyone thinks he's terminally ill, and it gets to the point where Mikawa himself thinks he's dying.
314* MurderTheHypotenuse: He has no qualms attempting to kill Nagasusmi if the opportunity presents itself, although by the end of the series this has stopped happening and he respects Nagasumi as a WorthyOpponent.
315* PrettyBoy: Noted to be very good looking.
316* RealMenWearPink: He's a fan of romance movies.
317* RichBastard: He uses money to solve his problems. Sun calls him out on this in his debut episode and he gets a little better about it.
318* TheRival: Set up as this to Nagasumi. The anime tends to zig-zag on whether or not it sticks.
319* ScrewTheRulesIHaveMoney: Again, in his first episode he threw money around to get what he wanted. Then Sun told him off for it. He's better about it later on.
320* SpikyHair: His hair is big and spiky.
321* TokenRichStudent: He's possibly the richest boy in Japan despite going to the same school as a cast mostly made of middle-class students.
322* UsedToBeASweetKid: When he was young, he was upset that people only spent time with him because of his money and came off as quite nice. In the present, he fully accepts that the only reason other people want to spend time with him is because he's rich and he regularly throws around huge sums of money as a result. Later episodes reveal that this resentment of his wealth is still buried under the surface.
323* WorthyOpponent: Comes to respect Nagasumi as one. Nagasumi generally just sees him as a weirdo.
324[[/folder]]
325
326[[folder:Akeno Shiranui]]
327[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/akeno_shiranui_2267.jpg]]
328->'''Voiced by:''' Creator/EriKitamura (Japanese), Creator/TrinaNishimura (English)
329
330A "mermaid examiner" with the responsibility of deporting all the mer-people who fail to qualify as not only resembling humans but also not arousing any suspicion of their true identities.
331----
332* ActionGirl: Cold, driven and very good with a sword.
333* AdaptationalVillainy: While in the manga she was a HeroAntagonist[=/=]AntiVillain due to being ordered by the government to break up Sun and Nagasumi, in the anime she's revealed to be TheDragon to a corrupt, lecherous noble who wants to abduct Sun. However, she turns on said noble when she realizes this.
334* AllAmazonsWantHercules: Implied to prefer men who are stronger warriors than herself via a love potion Ren gave Nagasumi. While under its influence, Akeno sees Nagasumi as a martial artist [[StoneWall with such an impenetrable defense]] that she immediately concedes ''[[KnowWhenToFoldEm without a fight]]'' by casting down her sword. Then blushes and says he can [[BestHerToBedHer do as he wishes with her.]]
335* AntiVillain: Type IV. While she is a antagonist to the main pair, if she didn't do her job there would be more problems for everyone.
336* BestHerToBedHer: Heavily implied during the aforementioned love potion incident. The moment Akeno drops her sword, she unfastens her hair and blushes as she offers herself to Nagasumi.
337-->'''Akeno:''' ''(aroused)'' "I concede to you. [[ArentYouGoingToRavishMe Do as you wish."]]
338* BigBrotherWorship: Adored her older brother as a child and wants to be like him... but hates him for disgracing their family with his disappearance and one of her secondary missions is to execute him if she finds him.
339* BigEater: Akeno has a surprisingly ravenous appetite. She can down entire buckets of rice and still have room for more.
340* BuxomBeautyStandard: According to Saru, Akeno is even bustier than Sun, and she becomes the center of attention in Episode 17 for this reason. Even Mawari, Gozaburo, and Fujishiro think she's "vexingly sexy".
341* CharacterCatchphrase: "How vexing."
342* DefectorFromDecadence: When she discovers that [[spoiler: Yoshiuo]] only wanted her to break up Sun and Nagasumi so he could [[RapeAsDrama have his way]] with Sun, she turns on him.
343* EvenTheGirlsWantHer: Mawari and a few other girls in the class call her "vexingly sexy" out of jealousy for her figure. Taken a step further in the manga with [[HelloSailor Jupiter]].
344* EvilAllAlong: In the anime's final arc it's revealed she was working for a lecherous merman noble who has his eyes on Sun. Subverted in that she was unaware of said noble's true intentions, and pulls a HeelFaceTurn when she learns them.
345* HeelFaceTurn: She was a villain starting out with her mermaid exam but switches to Nagasumi's side in the anime's climax.
346* HeelRealization: After hearing 1/8th Figurine's warnings regarding [[spoiler: Minamoto no Yoshiuo, she starts questioning the government's reasons for being so desperate to break up Nagasumi and Sun, and realizes she was Yoshiuo's UnwittingPawn.]]
347* HotTeacher: In the military academy she was a combat instructor for a short while, and schooled Maki Yuri.
348* InSeriesNickname: She has such stern and unyielding presence that even the toughest delinquents at the school are intimidated by her. But they're equally awed by her beauty and sex appeal, so they refer to her as the "Vexingly Sexy Shotcaller". It doesn't take long for it to spread around campus, 'til everyone begins to address by her new title.
349* MistakenForGay: Mawari has had this impression of Akeno ever since [[ImmodestOrgasm overhearing her attempts to increase Sun's endurance to water]] and walking in on them in a compromising position. The appearance of [[HelloSailor Jupiter]] helped this misconception. Saturn also has this perception of her and sees her as a threat to her and Sun being together.
350* MyGodWhatHaveIDone: Has this moment in the anime's finale, prompting her HeelFaceTurn. [[spoiler: In the manga she has another moment after confessing to Nagasumi, feeling she betrayed Sun's friendship, and later still when she realizes the truth behind the government order to break up Sun and Nagasumi.]]
351* NamedAfterSomeoneFamous: She shares her last name with Mai Shiranui, who's also a martial artist ''and'' a ponytailed, large breasted kunoichi from both the ''VideoGame/FatalFury'' and ''[[VideoGame/TheKingOfFighters King of Fighters]]'' series.
352* PhraseCatcher: She's referred to multiple times as "vexingly sexy" for an episode.
353* PunchClockVillain: She's not evil, but she takes her job ''very'' seriously.
354* {{Sarashi}}: Wears this instead of the bib in her school uniform, emphasizing her status as a skilled swordswoman.
355* ToBeLawfulOrGood: As a trainee swordsman she has to obey nobles but as a good person she has to disobey one. [[spoiler: She chooses to be [[ScrewTheRulesImDoingWhatsRight good]].]]
356* TsurimeEyes: It highlights her aggressive personality.
357* WhyDidItHaveToBeSnakes: Despite being a badass swordswoman with skills on par with Sun's, she is terrified of ghosts.
358* WreckedWeapon: Maki Yuri slices her sword to pieces in the manga's final arc.
359[[/folder]]
360
361!Seto Clan
362[[folder:General Tropes]]
363* BadassCrew: They're all superpowered mermaid gangsters.
364* CardCarryingVillain: Again, gangsters and proudly so.
365* HonorAmongThieves: They have their own code of honor. In the first episode, Sun tells Gozaburo that killing someone for no reason is just as bad as breaking TheMasquerade according to the mob code, and in episode 14, Maki saves the kitten from drowning because it saved her from being trampled, saying that she always pays back what she owes.
366* LaughablyEvil: Sure, they're gangsters, but they're also extremely amusing.
367* ThePiratesWhoDontDoAnything: The evilest thing they do is hassle Nagasumi.
368[[/folder]]
369
370[[folder:Gozaburo Seto]]
371[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/gozaburo_seto_6972.jpg]]
372->'''Voiced by:''' Creator/KentaMiyake (Japanese), Creator/JohnSwasey (English)
373
374The boss of the Seto Group and Sun's father. He's hell-bent on breaking his daughter's engagement by killing Nagasumi.
375----
376* AmazinglyEmbarrassingParent: On one occasion, Gozaburo dresses up like a CatGirl in an attempt to better understand Sun. Unsurprisingly, Sun has to literally be dragged kicking and screaming to school that day.
377* BoyfriendBlockingDad: Flies into a rage whenever he sees Nagasumi and Sun doing anything ''remotely'' romantic.
378* BunnyEarsLawyer: He's the influential leader of an enormous mob of undersea gangsters, but spends most of his screen time acting as Sun's BumblingDad.
379* EvenEvilHasLovedOnes: For all of his faults, he ''does'' deeply love and care about his wife and daughter.
380* EvenEvilHasStandards: He might be a little off his rocker, but even he's disgusted with Yoshiuo.
381* GoodScarsEvilScars: On his face. The good kind over the nose.
382* HairTriggerTemper: It doesn't take much to set him off, especially when Nagasumi's involved.
383* HappilyMarried: For all his faults, he's absolutely this with Ren.
384* HelicopterParents: He is overprotective to the point of homicidal mania [[BoyfriendBlockingDad when his daughter gets married]]. He repeatedly attempts to kill his son-in-law, and eventually takes over Nagasumi's school, replacing the staff with his enforcers so he can better keep an eye on his daughter. HilarityEnsues.
385* HenpeckedHusband: It becomes '''painfully''' clear in a few episodes that it is ''Ren'' who is the true ruler of the Seto Yakuza clan, '''not''' Gozaburo.
386* KnightTemplarParent: He infiltrates Nagasumi's school and frequently sends assassins out of a misguided attempt to protect his daughter.
387* LargeHam: He tends to ChewTheScenery in almost every scene he's in.
388* LoveObstructingParents: Gozaburo sends ''assassins'' to prevent intimacy between his beloved daughter and "that snot" Nagasumi, while Ren tries to keep her husband under control.
389* ObnoxiousInLaws: He makes it clear he absolutely despises his son-in-law and repeatedly attempts to kill him.
390* PapaWolf: As much as he tries to kill or at least hurt Nagasumi (all of which are always PlayedForLaughs), he will protect him and Sun if they are genuinely threatened, such as when Sun is kidnapped, or when Lunar's dad first shows up at school.
391* PsychopathicManchild: While he's the boss of the Seto Clan and threatens Nagasumi, his wife still sees him as a spoiled, immature brat who never left middle school and it shows.
392* TearsOfBlood: When Sun decided to live with Nagasumi he took it poorly.
393* VillainousBreakdown: Whenever Sun does something especially drastic, like deciding to marry a human, cut ties with her family and declare a one-woman war on the Edomae Outfit, or cross-dress as a delinquent, poor "[[ThirdPersonPerson Go-chan]]" is reduced to a sobbing, blabbering wreck.
394* WhyDidItHaveToBeSnakes: He still has a fear of cats because of an incident in his childhood where a cat bit his ear while he was sleeping and he nearly lost it due to the resulting infection.
395[[/folder]]
396
397[[folder:Ren Seto]]
398[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/ren_seto_5662.jpg]]
399->'''Voiced by:''' Creator/MakikoNabei (Japanese), Creator/StephanieYoung (English)
400
401Sun's mother and Gozaburo's wife. Unlike her husband, she's nice to Nagasumi.
402----
403* AffablyEvil: With how nice and mild-tempered she is, she's only "evil" because she's a yakuza head.
404* BerserkButton: Her husband's chronic immaturity and over-possessiveness regarding their daughter never fails to irritate her.
405* BewareTheNiceOnes: Is genuinely sweet and fairly even-tempered, but make her angry and she will break you.
406* CarnivoreConfusion: Offers Masa some fried octopus tentacle at the Bon Festival, and when he inquires whether it belongs to Nakajima[[note]]It does.[[/note]]; she shrugs and takes a bite out of it, to his horror.
407* CherryBlossoms: When she wants to be dramatic, she makes these petals fall when giving a speech.
408* GoodParents: She loves Sun and wants what’s best for her.
409* HappilyMarried: Despite how much Gozaburo's antics anger her, she really does love him. Case in point: Nagasumi once drank a potion that makes him appear to females as whatever they think is "extremely sexy" and Ren's version of him looks almost identical to Gozaburo.
410* KimonoIsTraditional: Regularly wearing a purple kimono (when not working as the school nurse) presumably as a clan tradition thing.
411* LetHerGrowUpDear: In contrast to her husband she is a ShipperOnDeck for her daughter and Nagasumi. She's very happy every time the intimacy in their relationship seems to go up a notch. [[ChastityCouple If only they moved beyond hugging and hand holding.]]
412* LoopholeAbuse: She was the one who got Nagasumi and Sun engaged to prevent one of them from being KilledToUpholdTheMasquerade, because humans who marry into a merfolk family are the exception to the rule.
413* MamaBear: If her daughter is in trouble, she'll make those responsible go through hell.
414* MarshmallowHell: She teases Nagasumi by putting his head into her well-endowed bosom.
415* OnlySaneWoman: The most level-headed and reasonable member of the Seto Clan, besides Masa.
416* ParentalSubstitute: Is pretty much Nagasumi's adoptive mom since his biological one really doesn't care for him.
417* ReasonableAuthorityFigure: Whereas her husband is HotBlooded most of the time, Ren is generally calm and collected, and doesn't make rash decisions as her husband tends to do. She and her husband also pay to repair the damage caused to Nagasumi's house as a result of his or Maki's usual overreactions there.
418* SchoolNurse: Her excuse to infiltrate the school. Nagasumi goes there whenever he needs a calm moment or gets injured,
419* ShipperOnDeck: She supports Nagasumi and Sun, and is usually the one to punish Gozaburo whenever he tries to interfere in their relationship.
420* TheTease: She loves making flirty comments towards Nagasumi; yes, her daughter's fiancé whom she ships. It's all in good fun.
421* TokenGoodTeammate: Along with Masa, she's the only member of the Seto outfit who supports Nagasumi's relationship with Sun and doesn't actively try to kill him.
422* UglyGuyHotWife: Ren is shown to be a babe with a bangin' hot bod, especially whenever she's in her nurse's uniform. So it's a wonder how Gozaburo managed to hook up with her, given his face is horribly scarred. According to the love potion fisaco, she thinks Gozaburo is "extremely sexy".
423[[/folder]]
424
425[[folder:Masa Shiranui]]
426[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/masa_san_9206.jpg]]
427->'''Voiced by:''' Creator/KatsukiMurase[=/=][[spoiler:Creator/ShuichiIkeda]] (Japanese), Creator/ChristopherSabat (English)
428
429A member of the Seto Group and the kendo teacher of Sun. He's also the one who, through performing CPR, "stole" Nagasumi's first kiss.
430----
431* TheAce: Cool, smart, strong and [[EvenTheGuysWantHim loved by everyone]], Masa parodies this because it is played for laughs.
432* BadassInANiceSuit: A gangster swordsman who dresses very well.
433* BadassTeacher: Works as a math teacher at Nagasumi's school to keep tabs on Sun and the lessons tend to involve gangster mechanics.
434* BigBrotherMentor: A frequent source of wisdom to Nagasumi and occasionally other characters. Nagasumi also has a pretty noticeable man crush on him.
435* CharacterizationMarchesOn: Before [[spoiler: suffering from amnesia caused by Gozaburo Seto]], Masa used to act and look completely different, being an easygoing [[spoiler: brother of Akeno and looked similar to her]].
436* CoolShades: One more reason why Nagasumi thinks he's the coolest person ever.
437* DeathGlare: Gives one to [[spoiler: Maki Yuri for making his little sister cry]].
438* EvenTheGuysWantHim: [[https://www.youtube.com/watch?v=_tWWvBkZ4-M&feature=related Masa-san]] is a sexy beast.
439* IdentityAmnesia: [[spoiler:Forgets his real identity after a drunken Gozaburo punched him in the head.]]
440* LongLostRelative: He is actually [[spoiler: Akeno's older brother.]]
441* MasterSwordsman: He was the one who taught Sun the Shiranui-style of kendo.
442* NiceGuy: He’s pretty affable and generally treats people with respect.
443* OnlySaneMan: He's calm, cool and competent in almost all situations.
444* RedBaron: When he was a government agent he was known as [[spoiler:Myoujyou of the Thousand Blades.]]
445* SacredFirstKiss: To Nagasumi (PlayedForLaughs [[RunningGag constantly]] in the anime) because of a KissOfLife situation.
446* SoulBrotha: Dark skin, huge afro, and virtually every other character sees him as a cool guy. [[spoiler: Odd, as he used to look completely different, with pale skin and long straight hair.]]
447* SpikeShooter: His special technique, [[spoiler:White Fish Scales, allows him to create giant bladed scales from any solid matter.]]
448* TheStoic: Does not have many facial expressions compared to other characters and hardly changes his tone when speaking, regardless of the situation.
449* TokenGoodTeammate: Aside from Ren, he's the only person in the gang that doesn't actively try to harm Nagasumi.
450[[/folder]]
451
452[[folder:Maki]]
453[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/maki_the_conch_3109.jpg]]
454->'''Voiced by:''' Creator/NatsukoKuwatani (Japanese), Creator/MonicaRial (English)
455
456A tiny assassin working for the Seto Group, as well a devoted friend of Sun. She uses a shell to shoot water balls.
457----
458* AffectionateNickname: Calls Nagasumi "Sea Louse" originally as an insult, though as she's thawed towards him it's become somewhat more affectionate.
459* BewareTheNiceOnes: Because, in this case, they're only pretending to be nice.
460* BitchInSheepsClothing: Acts like a ShrinkingViolet for Sun, but in reality, she's a crude and violent assassin who constantly tries to kill Nagasumi all while keeping up the charade so Sun doesn't suspect anything.
461* CainAndAbel: She has a younger sister, Fuki, who lives in Hokkaido, and was the Cain to her when they were children; nowadays, Fuki is just as rude and bitchy as Maki herself.
462* GlamourFailure: Her Humanization Transformation is imperfect, making her mouse-sized. She later perfects it and becomes able to transform into a human properly.
463* HopelessSuitor: Becomes a member of Nagasumi's UnwantedHarem in an effort to break him and Sun up, [[spoiler:although it's hinted she ''may'' have developed genuine feelings for him.]]
464* JerkWithAHeartOfGold: For all of her faults, Maki deeply cares for Sun and Gozaburo and is loyal to them no matter what.
465* KillerRabbit: A cutesy little girl who's literally small enough to fit in the palm of a human hand. Do ''not'' underestimate her.
466* LickedByTheDog: Kitten, in this case. A kitten that Nagasumi adopts in Episode 12 takes a liking to her and keeps licking her, much to her disgust.
467* LittleMissBadass: Literally; being knee-high to a pencil doesn't stop her from being a yakuza assassin.
468* TheOnlyOneAllowedToDefeatYou: Uses this as her excuse for protecting Nagasumi from Yoshiuo's eel in Chapter 29.
469* OurFairiesAreDifferent: When the Class Rep sees her moving, Maki pretends to be a fairy. It works, but [[ImTakingHerHomeWithMe bites her in the ass at the same time]].
470* ParrotPetPosition: She's often shown sitting on either Sun or Masa's shoulder. Justified since she's small enough to easily do so.
471* PetTheDog: In the anime she saves the kitten from drowning despite being terrified of it, in return for it saving her from being trampled. She also expresses begrudging respect and even on rare occasions sympathy towards Nagasumi. In episode 22, she also ends up bonding with Lunar and pledging to help her out, and in the manga she even displays some decency toward Class Rep.
472* ShoutOut: She has a visor and a 'surfing ram' attack. Hi there, [[VideoGame/VirtualOn Temjin]].
473* SizeShifting: Late in the manga she perfects her Humanization Transformation, allowing her to grow to the size of a normal human in order to seduce Nagasumi away from Sun.
474* SmallGirlBigGun: It's tiny by human standards, but massive compared to her and possesses heavy-duty firepower.
475* TheReasonYouSuckSpeech: Delivers one to Lunar while posing as her "Chibi Lunar" hand puppet, lampshading how transparent Lunar's BitchInSheepsClothing routine really is.
476* {{Tsundere}}: In the latter parts of the manga, she acts heavily Type A way towards Nagasumi, though whether she actually has feelings for him or it's just another ploy to break him and Sun up is unknown.
477* UndyingLoyalty: To Sun and Gozaburo, her charge and her boss, can rest assured of her faithfulness.
478* VerbalTic: ''desu~'' when pretending to be cutesy.
479* WhatTheHellHero: Calls Lunar out on her cruelty to Sun during the Edomae ShotgunWedding arc, even though ''she'' [[{{Hypocrite}} could have just as easily dispelled the misunderstanding herself.]]
480* WhyDidItHaveToBeSnakes: Like most mermaids, she's scared to death of cats. Unfortunately for her, the kitten Nagasumi adopts takes a liking to her, even pouncing on her and licking her face.
481* WorthyOpponent: Reluctantly comes to see Nagasumi as such, though she'd never admit it.
482* {{Yandere}}: She has UndyingLoyalty for Sun and will do anything to protect her up to, and including, murdering her husband for some preceived slight.
483[[/folder]]
484
485[[folder:Shark Fujishiro]]
486[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/shark_fujishiro_2571.png]]
487->'''Voiced by:''' Creator/TakehitoKoyasu (Japanese), Creator/BryanMassey (English)
488
489* BadassTeacher: Works as the gym teacher at Nagasumi's school to keep tabs on Sun and tries to eat him outside of class.
490* CharacterCatchphrase: "Can I eat him/her/them?"
491* TheDreaded: Nagasumi is ''terrified'' of him, and for good reason. On one occasion, Nagasumi thinks to himself that Fujishiro may be even more dangerous than Gozaburo himself.
492* GoofyPrintUnderwear: With little fishies on them.
493* GoryDiscretionShot: The one time Fujishiro ''does'' get to eat something in the anime, namely Yoshiuo's mooks, all that's seen of it is him shouting "Thanks for the meal!", the horrified expressions of Akeno and the other onlookers in the background... and enough blood painting the foreground to match the goriest of slasher flicks.
494* HairTriggerTemper: He goes from calm to extremely angry with minimal provocation and deals with it by trying to eat Nagasumi.
495* HeroicComedicSociopath: Nearly all his scenes involve him trying to eat Nagasumi or asking if he can eat the other students. This would make him a villain if he weren't (technically) allied to Nagasumi against people like Lunar Papa and if his antics weren't played for laughs.
496* MistakenForPedophile: When he, Masa, and Gozaburo are caught conspiring against Akeno by Ren, they come up with lame excuses [[BuxomBeautyStandard based on her figure]]. Fujishiro remarks that he would "eat her in more than one way", causing Masa to comment on how wrong that sounds. Later, when he asks Mawari if he can "[[AccidentalInnuendo eat]]" her, she accuses him of sexual harassment.
497* MurderIsTheBestSolution: His typical approach to solving a problem is to try to eat the source of said problem.
498* TheOnlyOneAllowedToDefeatYou: No one else may eat Nagasumi.
499* PartialTransformation: Reverts just his head back to shark form when on land.
500* ScaryTeeth: Even in human form he has sharp teeth.
501* StrangeSyntaxSpeaker: He speaks as if all sentences were questions.
502* ThreateningShark: He is a shark in human form, and would love nothing more than to eat Nagasumi -- something he repeatedly tries to do.
503[[/folder]]
504
505[[folder:Octopus Nakajima]]
506[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/octopus_nakajima_8429.jpg]]
507* AnArmAndALeg: Ever since the Bon Festival, when Ren cut off and ate one of his limbs, he's been losing tentacles. At one point he even used his own tentacles in home ec. class.
508* CombatTentacles: Though they're not very effective considering everyone keeps cutting them off and cooking them.
509* CurbStompBattle: He loses easily against an enlarged Nagasumi.
510* GlamourFailure: He's apparently the home ec teacher, but hasn't perfected his Humanization Transformation and randomly reverts back into octopus form.
511* {{Kaiju}}: He's a giant pink octopus.
512* UnusuallyUninterestingSight: He's usually seen sticking out of a window in octopus form when at school. Apparently this hasn't harmed the masquerade at all.
513[[/folder]]
514
515[[folder:Maguro, Agitaro & Furiyo]]
516->'''Maguro is voiced by:''' Kouki Harasawa (Japanese), Chris Cason (English)
517->'''Agitaro is voiced by:''' Keisuke Fujii (Japanese), Creator/JoshGrelle (English)
518->'''Furiyo is voiced by:''' Creator/AtsushiImaruoka (Japanese), Creator/SonnyStrait (English)
519----
520* ButtMonkey: It's rare for them not to get tossed around.
521* EliteMook: They are supposedly three of Gozaburo's best agents. Supposedly.
522* GlamourFailure: Their Humanization Transformations were incomplete, leaving them with fishlike faces, and they have no resistance to water whatsoever.
523* GoldfishPoopGang: And a rather literal example too, seeing as they're part fish!
524* {{Gonk}}: Their faces are distinctively fishy.
525* HeelFaceRevolvingDoor: They've deserted the Seto Outfit to work for Akeno and Jupiter, but are always EasilyForgiven.
526* InformedAbility: They're stated to be Gozaburo's {{Elite Mook}}s, but, like most merpeople, are scared witless of cats. On top of that, they're easily [[CurbStompBattle curb-stomped]] by Akeno in episode 16 not once, but twice.
527* PaperThinDisguise: One of them [[WholesomeCrossdresser crossdresses]] in order to disguise himself and get close enough to deal with Nagasumi's cat. Unfortunately, everyone involved sees through it immediately, because it's kind of hard to disguise yourself when you look like [[http://screenshots.fansub.tv/1014/19/23.jpg this.]]
528* ThoseTwoGuys: A cast herd of three minor characters whom no one remembers.
529* VerbalTic: All three of them have the exact same one, gyo!
530[[/folder]]
531
532!Other Characters
533
534[[folder:Lunar's Papa]]
535[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/s_papa_4449.jpg]]
536->'''Voiced by:''' Creator/TesshoGenda (Japanese), Creator/JMichaelTatum (English)
537
538* ActionHero: As part of his TheAhnold trope, he acts like this on occasion; his introductory scenes involve jumping out of his car from the highway and dodging explosions. He is also quite a capable fighter, as seen by his battle with Sun's father at school.
539* ActorAllusion: Creator/TesshoGenda is the Japanese dub voice of the T-800 101 in the ''Franchise/{{Terminator}}'' franchise. In other words, casting Genda in this role would be like casting Creator/ArnoldSchwarzenegger for the role of Lunar's Papa in the English dub.
540* AdaptationalVillainy: In his manga debut, he actually just wants to ''talk'' to Nagasumi about Lunar and is mistaken for trying to attack him due to how forceful he comes off. In the anime, there is no such misunderstanding: he actually ''is'' trying to attack Nagasumi.
541* TheAhnold: A blatant Terminator expy and has the accent and the Japanese Voice Actor.
542* AmazinglyEmbarrassingParents: Lunar is repeatedly embarrassed by her father's efforts to get closer to her, particularly whenever he cross-dresses with a SailorFuku.
543* BarehandedBladeBlock: He catches Kai's sword in two of his fingers then snaps it.
544* BrainBleach: Him wearing a SailorFuku is this for his daughter and many others. (''shudder'')
545* CaptainErsatz: Of the Franchise/{{Terminator}}. One can assume the only reason that nobody was sued is because he is played for laughs.
546* CoolShades: His sunglasses hide his eyes and make him all the more like a robot.
547* DotingParent: He tries to be a good father. Now if only Lunar would stop pushing him away whenever he tries to reach out...
548* EyeBeams: Seen firing them in the finale like a robot would.
549* GratuitousEnglish: In ''Franchise/{{Terminator}}'' shoutouts no less!
550* ImplacableMan: His introductory episode is played like a (comical) horror movie with an unstoppable monster chasing TheProtagonist.
551* LawyerFriendlyCameo: He's is a blatant Terminator ripoff and if he weren't played for laughs (among other things) the writers might have been sued.
552* MadeOfIron: Not even a KillSat can stop him. His first appearance is even called "Iron Man".
553* NoSocialSkills: He doesn't know how to communicate with people very well outside of scaring the crap out of them (especially his own daughter).
554* PapaWolf: When Nagasumi makes Lunar cry for refusing to marry her, Lunar's papa is ready to beat the living pulp out of the boy.
555* PopCulturedBadass: In his continuing efforts to relate to Lunar, he studied gal games and learned about archetypes such as the Childhood-Friend and Little-Sister.
556* RealMenWearPink: This guy is so ripped and scary that not even wearing a SailorFuku makes him any less manly.
557* ReasonableAuthorityFigure: He can be this at times, such as when Lunar needed some extra money to finish shooting a film. He shows up in a helicopter and drops a large suitcase of cash to help her finish it. Also, like Sun's father, he also pays for repairs to Nagasumi's house anytime he wrecks it.
558* RetiredOutlaw: Wanted to go straight after Lunar was born, [[spoiler:but his wife took issue with him putting the company in front of his family.]]
559* TheStoic: The reason he's thought to be a robot is because he shows so little emotion. This is a sticking-point in his relationship with both his wife and his daughter; despite how much he loves them he has difficulty expressing it.
560* TerminatorImpersonator: Takes the Terminator aspect and [[PlayedForLaughs plays it for as many laughs as possible.]] Both English and Japanese dubs give him Schwarzenegger-like mannerisms; he's never seen without his black shades; he relentlessly hunts down Nagasumi in his own school while causing a panic among the students; he's [[NoSell completely unfazed]] when Nagasumi hits him with a KillSat; and in his introductory episode, he makes his exit by climbing into a dumpster fire and slowly lowing himself down into it while giving a thumb's up.
561* UnnamedParent: He is only referred to as Lunar's papa.
562[[/folder]]
563
564[[folder:Nagasumi's Family]]
565->'''Nagasumi's father is voiced by:''' Creator/AtsushiImaruoka (Japanese), Andy Mullins (English)
566->'''Nagasumi's mother is voiced by:''' Noriko Namiki (Japanese), Creator/LydiaMackay (English)
567->'''Nagasumi's grandmother is voiced by:''' Eriko Matsushima (Japanese), Juli Erickson (English)
568
569* AbusiveParents: They have NoSympathy for the various problems Nagasumi faces, wish that he was a girl and would rather have Sun as a child, and have absolutely zero qualms about declaring him to be a worthless disgrace to their family, even when he's standing right in front of him. No wonder that when they have their own problems going on, [[TheDogBitesBack Nagasumi]] [[ScrewThisImOuttaHere goes far away]] and leaves them with it.
570* AdultsAreUseless: Whenever there's a problem, they quiver in a corner.
571* CoolOldLady: Unlike Nagasumi's parents, his grandma remained totally calm at Sun's sudden visit and marriage proposal. She is much more reasonable towards Nagasumi than his parents are and even gave him a generous amount of money so that he can enjoy the summer festival together with Sun (specifically so he could buy Sun whatever she wanted).
572* HenpeckedHusband: Mrs. pushes Mr. further and further away from the family as the series progresses. Soon, he's no longer at the dinner table.
573* HiddenBadass: Nagasumi's Mom taught Mawari how to play karuta, and has skills and reflexes that vastly exceed even Akeno's.
574* NoSympathy: Nagasumi's parents' typical reaction to any of his many, many problems is to ignore them.
575* {{Unnamed Parent}}s: They are not named and are only known as Nagasumi's family.
576* WantedASonInstead: At many points they say they'd rather have a daughter than a son. Mrs. just ''loves'' washing dishes with her daughter-in-law.
577* WhyAreYouNotMySon: Nagasumi's parents consider him a loser, and declare Sun, Lunar, and Maki to be the daughters they wish they had. To the point that they move ''their son to the attic and move Sun to his room''.
578[[/folder]]
579
580[[folder:Minamoto no Yoshiuo]]
581->'''Voiced by:''' Creator/DaisukeNamikawa (Japanese), Creator/ChrisPatton (English)
582
583* AdaptationExpansion: His portrayal in the anime differs from his portrayal in the manga. [[spoiler: At least at first.]]
584* AdaptationalVillainy: He is ''much'' more vile in the anime than in the manga, being an [[RapeIsASpecialKindOfEvil outright rapist]] who also attempts to murder Sun when she defies him as opposed to just an [[AristocratsAreEvil evil, power-hungry aristocrat]]. His comeuppance is much more painful - and cathartic - as a result.
585* AristocratsAreEvil: He's the main antagonist for the anime's finale, and [[spoiler: the manga's finale as well]] by exploiting his noble status for selfish purposes.
586* BadBoss: He threatens to have his way with Akeno if she doesn't obey him in the anime.
587* BigBad: He's revealed to be one the behind Akeno in the anime's finale and fighting him is the finale. [[spoiler: He's eventually revealed to be the Big Bad of the manga as well.]]
588* CrazyPrepared: [[spoiler: Has spies in every place even remotely related to Sun.]]
589* DudeShesLikeInAComa: He drugs Sun into a stupor and would have raped her in the anime's finale if it hadn't been for Nagasumi.
590* {{Gonk}}: Is an anthropomorphic catfish, and even less human-looking than Maguro, Agitaro, and Furiyo. It's partially averted in the anime, where his human form is an attractive man with long blue hair.
591* HarmlessVillain: In Chapter 29 of the manga he invites Sun and Nagasumi into his manor only to woo the former and try to feed the latter to his pet giant eel. After Sun pleads for Nagasumi to be spared, he apologizes and pledges his support to them, but... [[spoiler: he lied and turns out to be NotSoHarmless after all.]]
592* HateSink: Yoshiuo in the anime is clearly not meant to be liked. He drugs Sun, locks her family in a dungeon, and fully intended to rape her.
593* HeelFaceTurn: [[spoiler: The manga version of Yoshiuo has the evil in his heart destroyed by a magic spear and changes his ways.]]
594* {{Kaiju}}: Keeps an enormous eel called "Ucchan" as a pet, and has three of them in the anime.
595* KarmaHoudiniWarranty: After chapters of getting away with evil deeds, he finally gets his comeuppance at the hands of [[spoiler:Nagasumi]] towards the end of the series.
596* LaserGuidedKarma: [[spoiler:After Nagasumi beats the everlasting hell out of him, everyone discovers he's actually a {{Gonk}} with Akeno's superior being more than happy to be able to reveal his crimes.]]
597* LoveAtFirstNote: Fell in love with Sun's singing voice when she was just a child.
598* ManBehindTheMan: In the finales of both the anime and the manga it is revealed [[spoiler:he was the one who issued the Merperson Examination's secret mission to break up Sun and Nagasumi]].
599* NotSoSmallRole: He was [[spoiler: seemingly]] a one-shot minor antagonist in the manga, [[spoiler: but is later revealed to be the BigBad]].
600* PhoneaholicTeenager: He acts like one in the anime when he is in his human-looking form, prone to lounging around and ordering others to do work for him while he does trivial things.
601* RapeIsASpecialKindOfEvil: In the anime he has a reputation of drugging and raping girls who catch his fancy, and sets his eyes on Sun. He also threatens to rape Akeno if she doesn't follow his orders. This makes him more deplorable than both the gangster assassins and the remorseless government agents.
602* SpeakingLikeTotallyTeen: In the dub. Even his men speak like this.
603* VileVillainSaccharineShow: My Bride is a Mermaid is for the most part a romantic comedy, but Yoshiuo is an absolute monster and everything he does is extremely vile.
604* WouldHurtAChild: While his age is unclear, he had no problem raping Sun or beating Nagasumi.
605* {{Yandere}}: Anime version. He's fixated on having Sun for himself and drugs her for his perverse pleasure.
606[[/folder]]
607
608[[folder:Akeno's Superior]]
609->'''Voiced by:''' Creator/KazuyaIchijo (Japanese), Creator/JasonDouglas (English)
610
611* BaldOfEvil: After being [[HistoryRepeats knocked out by Gozaburo and getting amnesia]], he shaves his head and becomes a member of the Seto Group as "Gin".
612* DeadpanSnarker: Whenever he has the misfortune of witnessing the main cast's antics, he wryly remarks about it to himself.
613* FlyingSeafoodSpecial: Transforms into a spectral serpentine fish capable of flight.
614* GovernmentAgencyOfFiction: Is Akeno's superior in the Merpeople Experiment, and [[spoiler: Masa]]'s successor as the chief investigator of the Imperial Court.
615* NoNameGiven: Akeno just refers to him as "Kenshichou".
616* PunchClockVillain: He's not evil, just doing his job... which happens to be breaking up Nagasumi and Sun.
617* TraumaInducedAmnesia: [[HistoryRepeats Gozaburo punches him in the face]], leading him to shave his head and adopt the persona of Gin.
618* {{Youkai}}: Given his supernatural powers beyond those of other merfolk.
619[[/folder]]
620
621[[folder:Satori]]
622
623->'''Voiced by:''' Creator/TomokoKaneda (Japanese)
624
625Sarutobi's younger sister.
626----
627* AnnoyingYoungerSibling: Saru treats her as such, although she is as equally annoyed by him.
628* PrecociousCrush: While she initially dismisses him, she develops one on "Nagasumi Willis" after he saves her.
629* PunnyName: In the OVA's opening she can be seen dancing the Monkey in the background.
630* RescueRomance: Towards Nagasumi after he saves her from a collapsing theatre.
631[[/folder]]
632
633[[folder:Saturn]]
634[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/saturn_hanayome_8287.jpg]]
635
636->'''Voiced by:''' Creator/AyumiTsunematsu (Japanese)
637
638A childhood friend of Sun, Saturn is a seaweed creature whose hair can act as weapon. She becomes an English teacher at Sun's junior high school.
639----
640* AdaptationalNiceGuy: In the sole [=OVA=] she appears in, all of her willfully negative traits are removed. Her attacking people is more of an accident done out of a skittish sense of self-defense, and she goes back to the sea on good terms with everyone at the end rather than sticking around to become a {{Yandere}} SadistTeacher.
641* AdaptedOut: Didn't appear in the anime, and only her manga debut was adapted into an [=OVA=]. Lampshaded in a preview at the end of Chapter 54.
642* {{Blackmail}}: She can use her stalking skills to blackmail just about anybody.
643* CeilingCling: Uses this to avoid detection and ambush targets.
644* ChildhoodFriendRomance: She has a blatant lesbian crush on her childhood friend Sun.
645* ClingyJealousGirl: She becomes extremely jealous of people close to Sun and hates Nagasumi, Lunar and Akeno, believing them both to be in her way.
646* HidingBehindYourBangs: Her hair always covers her left eye for the sneaky factor.
647* LadySwearsALot: When she's teaching English, she's teaching English swears. It's more than likely why her only animated appearance is based on her introductory chapter from the manga in the OVA which has none of this.
648* MurderTheHypotenuse: She tries to get rid of all perceived suitors of Sun's so she can have Sun to herself.
649* PrehensileHair: Uses her hair as CombatTentacles.
650* PsychoLesbian: She wants Sun all to herself and is more than willing to get rid of anyone that gets in her way.
651* SadistTeacher: She's pretty harsh to students early one but [[CharacterDevelopment as the series progresses]] she becomes a SternTeacher.
652* StringyHairedGhostGirl: She has dark green hair, and when she appeared in the OVA, she was thought to be a ghost.
653* {{Yandere}}: Wants anyone attracted to Sun out of the picture so she can have Sun to herself.
654[[/folder]]
655
656[[folder:Jupiter]]
657
658* AdaptedOut: Didn't appear in either the anime or [=OVA=]s. It's lampshaded in a preview at the end of Chapter 54.
659* BoyishShortHair: If it weren't for the fact that she has noticeable curves she could easily be mistaken for a boy.
660* ButchLesbian: Is a soldier and has BoyishShortHair, [[PlayingWithATrope but is prone to spacing out and having erotic fantasies]].
661* HelloSailor: Fell in love with Akeno during their time together at military school.
662* HornyNosebleed: Gets these whenever she has pervy thoughts about Akeno... which is most of the time.
663* NoKillLikeOverkill: Brought [=GyoWAT=] with her to assist Akeno in breaking up San and Nagasumi.
664* OneeSama: Refers to Akeno as "Onee-sama", even though they aren't actually related, and is romantically interested in her.
665* SingleTargetSexuality: Akeno-centric.
666* StalkingIsLove: Jupiter's espousal of this is the main reason Akeno doesn't like hanging with her. She even rummages through Akeno's trash.
667* TalkToTheFist: Does this to herself whenever she catches herself indulging in perverted fantasies.
668* VillainTeamUp: Of a PunchClockVillain variety with the Last Amazoness, engineered by Saturn so that Akeno can be taken back to the sea.
669* YuriFan: Ships herself and Akeno, who [[AllLoveIsUnrequited doesn't reciprocate her feelings]].
670[[/folder]]
671
672[[folder:Maruko Okhotsk]]
673
674* AdaptedOut: Didn't appear in either the anime or [=OVA=]s. Lampshaded in a preview at the end of Chapter 54.
675* AntiMagic: Can cancel out another mermaid's voice with her Reverse Sound Waves technique.
676* BecauseYouWereNiceToMe: The reason she likes Sun so much is because Sun protected her from bullies.
677* ChildhoodFriends: Spent six years living in Setochi.
678* CompellingVoice: Can hypnotize other people into doing her bidding.
679* CrystalDragonJesus: Is 14 years old, decked out like a nun, and lives in a cathedral, but actually practices the fictional Mipopo religion.
680* FantasticRacism: Was bullied as a child for being Ainu, making it less fantastic as many Ainu people ''are'' discriminated against in Japan.
681* ForgottenChildhoodFriend: Despite talking to her the same day she saved Nagasumi, Sun completely forgot about her after moving to Saitama.
682* HopelessSuitor: Becomes a member of Nagasumi's UnwantedHarem, and Nagasumi is (basically) already HappilyMarried to Sun.
683* MafiaPrincess: Is the daughter and heir of the leader of the Okhotsk Outfit.
684* RescueRomance: Falls for Nagasumi after he saves her life at Christmas time, although she still insists that she's pursuing him romantically for Sun's own good.
685* UnknownRival: To Saturn, Sun's ''other'' [[ChildhoodFriends Childhood Friend]].
686* {{Yandere}}: Like Saturn, Maruko is willing to [[HumanSacrifice go to extreme lengths]] to break up Sun and Nagasumi, although in her case she at least cares for them both (being in love with Nagasumi but also being Sun's friend, and thinking Sun will benefit from losing her relationship with Nagasumi.)
687[[/folder]]
688
689[[folder:Fuki]]
690* AdaptedOut: Didn't appear in either the anime or [=OVA=]s. It's lampshaded in a preview at the end of Chapter 54.
691* AnIcePerson: Her ''Konru Ikushbe'' technique encases its target in ice.
692* ArsonMurderAndJaywalking: Showed up at the Michishio household to give Sun souvenirs from Hokkaido... and kill the humans present.
693* CainAndAbel: Was the Abel to Maki's Cain when they were children but now she's as ruthless and foulmouthed as Maki.
694* TheGloriousWarOfSisterlyRivalry: Bickers with Maki over just about everything.
695* HopelessSuitor: Becomes a member of Nagasumi's UnwantedHarem and has no chance against Sun.
696* ImprovisedUmbrella: Uses a butterbur leaf as an umbrella [[PetalPower and a weapon]] in a reference to the koropokkuru of Ainu folklore. Fitting because she is from Hokkiado.
697* LongLostRelative: Maki treats her as such, having completely forgotten about her after moving to Saitama.
698* MartialArtsHeadband: Wears one decorated with Ainu symbols as part of her gangster assassin outfit.
699* PetitePride: In contrast with Maki's ACupAngst, she's happy being small.
700* SizeShifter: Masters the Humanification Transformation shortly after [[spoiler: Maki]] does, and [[UnwantedHarem for the same reason]].
701* StrongFamilyResemblance: strong enough that when she showed up Nagasumi mistook her for her sister Maki at first.
702* UsedToBeASweetKid: As a child she was quite nice, but now that she's grown up she's just as nasty as her big sister.
703[[/folder]]
704
705[[folder:Amano Edomae]]
706
707* ActionMom: Even Lunar's dad, an expy of the Terminator, is intimidated by her.
708* AdaptedOut: Didn't appear in the anime or [=OVA=]s.
709* BitchInSheepsClothing: She's where Lunar gets her hidden haughty attitude from.
710* BloodKnight: She taught Lunar the [[HatePlague Song of War]] as a ''lullaby'', and considered fighting off her berserk daughter playing!
711* BringIt: Her response to being sentenced to 10 years in prison.
712* CarFu: Ran over her husband at over 100 km/h.
713* DisproportionateRetribution: She divorced ''and'' tried to kill her husband for trying to go legitimate in business and becoming MarriedToTheJob.
714* DivorceRequiresDeath: Tried to kill her husband as a proxy for divorce.
715* JustGotOutOfJail: Chapter 66 begins with her release from Hokkaido Takimura Penitentiary.
716* TheMaidenNameDebate: After divorcing Lunar's father she started going by her maiden name, Sagami.
717* MissingMom: [[spoiler: Was arrested for trying to run over her husband and given 10 years in jail for attempted murder, manslaughter, speeding, not being repentant, and contempt of court.]]
718[[/folder]]
719
720[[folder:1/8th Figurine]]
721
722* AdaptedOut: Didn't appear in the anime or [=OVA=]s.
723* DefectorFromDecadence: Is a noble who left the imperial court [[spoiler:to warn Nagasumi of Minamoto no Yoshiuo's plans.]]
724* HarbingerOfImpendingDoom: Shows up and informs [[spoiler:Nagasumi that the merpeople nobility has sent assassins to kill him following the disappearance of Akeno's overseer.]]
725* InvisibleToNormals: Nagasumi and Akeno are the only ones she lets see her.
726* MrExposition: Reveals to Nagasumi that Akeno is trying to break him and Sun up and that she has orders to kill him should breaking them up not work. [[spoiler:She also reveals to Akeno that the top secret true objective of the Merpeople Examination - to break up Nagasumi and Sun - was set up by Minamoto no Yoshiuo so he could get Sun for himself.]]
727* TheNicknamer: Kept forgetting Nagasumi's name and decided to call him "Miguel" instead of "Michishio".
728* NobleFugitive: Learned of Minamoto no Yoshiuo's plot to get rid of Nagasumi and [[HeKnowsTooMuch fled to save herself from assassination]].
729* OnlyKnownByTheirNickname: Is only referred to as "Fairy-san" by Nagasumi and "1/8 Figurine" by her enemies.
730* OurFairiesAreDifferent: She likes being called "Fairy-san", though all that's really known about her is that she's different from Maki and Fuki despite being the same size as them.
731* WalkingSpoiler: Is a key player in the manga's final arc.
732[[/folder]]
733
734[[folder:Maki Yuri]]
735
736* AdaptedOut: Didn't appear in the anime or [=OVA=]s, but more-or-less less fills Akeno's shoes from the anime's finale.
737* CurbStompBattle: Easily defeats Jupiter and Akeno by herself. [[spoiler: In their final battle, Akeno uses the remnants of her own sacred sword and defeats her in seconds]]
738* CuteAndPsycho: Is unrelenting, intense, and vicious when attacking, but otherwise apologetic and a major crybaby.
739* DefeatingTheUndefeatable: Slices Akeno's sacred sword to pieces and dislocates Jupiter's hip with one hand when they try to stop her from killing Nagasumi. [[spoiler: Akeno pays her back during the final battle, cleanly defeating her in seconds.]]
740* HeelFaceTurn: [[spoiler: Akeno defeats her then points out that she should put her faith in 1/8 Figurine, who is an actual god, rather than Yoshiuo because someone trying to kill god is probably not the best kind of person.]]
741* HiredGuns: Is a black ops assassin sent to silence 1/8th Figurine and break up Sun and Nagasumi, or else kill him.
742* OneSteveLimit: Averted. She has the same first name as Maki, lampshaded in a gag panel.[[invoked]]
743* NiceGirl: Pleads for Nagasumi to break up with Sun in order to save their lives. [[spoiler: It's revealed that she truly doesn't want to fight, but does it because Minamoto no Yoshiuo promised to protect her hometown.]]
744* ReluctantWarrior: She doesn't want to kill anyone, so she strongly advises Nagasumi to break up with Sun but when it comes to combat she shows no mercy.
745* SurpassedTheTeacher: Akeno taught her how to fight, and Maki is the only person she has never been able to defeat.
746[[/folder]]
747
748[[folder:The Kitten]]
749
750A little white kitten whom Nagasumi adopts, and a constant source of fear for most of the Seto Gang.
751----
752* CuteKitten: A darling little creature, which is why it is so funny to see merfolk flee in terror of it.
753* CutenessProximity: Every human at Nagasumi's school is instantly smitten with it upon seeing it, and even some of the merfolk like the super-cool Masa.
754* TheDreaded: To most merpeople, since they're technically fish and cats eat fish.
755* KillerRabbit: Averted; as a little kitten, it's completely harmless. Though most merpeople who encounter it react as if the trope was played straight.
756-->'''Lunar''': Well, just what do you expect?! We're mermaids, after all!\
757'''Sun''': That kitty's our natural enemy! To it, we're food!
758[[/folder]]

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