History Characters / HekikaiNoAiOn

* TeensAreShort: Her height is 1.46m (4' 7").

* TeensAreShort: 1.62m (5' 4") at the age of 16.

* {{Bishounen}}: First the cute kid edition, then later the hot guy edition.

%%* {{Bishounen}}

%%* {{Bishounen}}

* BoobsOfSteel: The physically strongest character in the series and one of the bustiest.

%%* TheDarkChick: Anshu.

%%* ShortHairWithTail: The sixth mermaid.

* GirlInABox: Lived in a cardboard box prior to meeting Tatsuya.

* AsskickingEqualsAuthority: No matter if you're younger, if you're powerful enough you can take your older sister's place in the ladder. [[spoiler:That precisely is Enati's plan]].

* LethalChef: As [[IllGirl Shizuki discovered]]. Only Seine is not bothered by his cooking.

* IllGirl: Her body is so weak that she can't swim in pools because of the chlorine, gets tired easily, and Tatsuya's food [[BloodFromTheMouth almost killed her]]. Luckily she's immortal.

* {{Neet}}: She does absolutely nothing but eat and sleep. Partially justified as she's an IllGirl.

%%* CryCute: She does one or another.

* CryCute: Ariel, when she cries, cries from the bottom of her heart and looks so adorable.

* ImportantHaircut: She used to have a mild example of RapunzelHair, but she cut it when she ultimately decided to follow the YouKilledMyFather path.

%%* RapunzelHair

%% * RapunzelHair: Ariel, Bella and Anshu.

%%* SpotOfTea

* YouGottaHaveBlueHair: She has green hair.

* YouGottaHaveBlueHair: She has purple hair.

%%* MulticoloredHair: Anshu.

* MulticoloredHair: Black, with blonde bangs.

* MulticoloredHair: Black with blonde bangs.

%%* {{Megane}}

* AnimalMotifs: Cats. So much that she portrayed as a CatGirl in an [[http://submanga.com/c/93781 omake]].

* {{Neet}}: After the TimeSkip.

* RelationshipUpgrade: [[spoiler:With Tatsuya]].

* WhenSheSmiles: [[http://www.mangareader.net/1646-52658-31/hekikai-no-aion/chapter-20.html Just look at her]]. [[DoggedNiceGuy Tatsuya]] is out of breath.

* CryCute: She does [[http://www.mangareader.net/1646-52654-10/hekikai-no-aion/chapter-16.html one]] or [[http://www.mangareader.net/1646-52654-11/hekikai-no-aion/chapter-16.html another]].

* CloserToEarth: He says to Tatsuya that he can't go around picking girls to live in his house. [[RealityEnsues And he's right]].

* ZettaiRyouiki: Mostly Grade B, sometimes Grade A.

%%* {{Adorkable}}

%%* DoggedNiceGuy: To Seine.

* HairDecorations: Two blue hair clips.

* ShipperOnDeck: To Seine x Tatsuya.

%%* SpoiledSweet

* {{Bishounen}}

* LikesOlderWomen: [[spoiler:He had a crush on Tatsuya's mother, Umi, when he was a teenager]].

* NoRespectGuy: To Seine.

* AffectionateGestureToTheHead: To Yuzuki. Also sometimes to Seine, just to annoy her.

* TheBusCameBack: [[In chapter 40]].

* CovertPervert: She's an "Oyaji-con"; she likes [[SilverFox old, handsome men]]
* GodInHumanForm

* OneeSama: to Yuzuki.
* PointyEars: Probably due to being a demon.
* PolarOppositeTwins: With Yuzuki.

* ShowSomeLeg: In Volume 4's index.

* ThemeTwinNaming: With Yuzuki.

* BridalCarry: Sometimes she carries Shizuki around like this.

* ExtremeDoormat: To her sister.
* ForcefulKiss: The way she expresses her love for little girls. '''Any''' little girl.

* MsFanservice:
** Bikini in the BeachEpisode.
** Her {{Meido}} outfit at "work".

* PolarOppositeTwins: With Shizuki.
* PointyEars: Probably due to being a demon.
* PrettyFreeloader: But at least she cleans and cooks.

* InSeriesNickname: Shii-chan.
* MoralityPet: To her elder sister.

* Really700YearsOld: He was 1700 years old.

* AmbiguouslyBrown: Ariel.
* AnimeHair: Bella.
* AntiVillain: Ariel, [[SlidingScaleOfAntiVillains type 1]].
* ArtificialLimbs: [[spoiler:Enati]].

* BadWithTheBone: Enati [[spoiler:uses Simon's skull to make an illusion of him]].
* BerserkButton: [[BigSisterInstinct Hurting or bullying her youngest sister]] will set Ariel off.
* BigBad: Among then, Ariel the eldest is the leader.

* CuteMonsterGirl: All of them (even Ariel), except for Bella.

* GiantWallOfWateryDoom: Their ultimate weapon.

* JustBetweenYouAndMe: The fight between Seine and Ariel.
* LotusEaterMachine: [[spoiler:Ariel put Seine in one of this]].

* RapunzelHair: Ariel, Bella and Anshu.

%%* SiblingRivalry

* {{Cute Monster Girl}}s: All of them (even Ariel), except for Bella.

* TheDarkChick: Anshu.

* EvilGenius: Enati.
* FangsAreEvil
* FemmeFatalons

* HellishPupils
* [[spoiler:ImAHumanitarian]]
* [[IHaveNoSon I Have No Sister]]: Bella to [[spoiler:Sheila]].

* [[spoiler:MasterOfIllusion]]: Enati.
* MindControl: Via Mushis.
* MulticoloredHair: Anshu.
* [[spoiler:OffWithHerHead]]: Enati.
* OurMermaidsAreDifferent

* ShortHairWithTail: The sixth mermaid.
* SiblingRivalry

* {{Neet}}:She does absolutely nothing but eat and sleep. Partially justified as she's an IllGirl.

* ForcefulKiss: [[spoiler:The way she infects humans on land]], [[spoiler:At the end of chapter 38, she gives one of these to Tatsuya]].

* GirlishPigtails: At school.
* GoingCommando / VaporWear: She doesn't seem know what a bra is or what it's for.

* ImpossibleHourglassFigure
* InnocentFanserviceGirl

* [[spoiler:PrettyFreeloader]]
* [[spoiler:OffWithHerHead: The way Seine killed her 300 years ago]].
* OurMermaidsAreDifferent
* RapunzelHair
* ScarsAreForever
* SchoolUniformsAreTheNewBlack: Sheila is always showed wearing her uniform. [[spoiler:Justified; it seems to be her [[LimitedWardrobe only wardrobe]].]]
* ShrinkingViolet

* ThrowTheDogABone: [[spoiler:Ariel gave her Enati's lower body after she died so now she's a complete mermaid again]].
** [[spoiler:And after Seine give up Aion, this returned to her and give her back her voice]].

* [[spoiler:UnusualEars: As a mermaid.]]

* ItsNotYouItsMyEnemies: Tried to leave Seine somewhere safe without telling her before he went to fight the mermaids...
** ShooTheDog: ...but Seine went back to him, right in the middle of the fight, and yelling at her to run to safety[[spoiler: distracted him enough that the mermaids were able to attack him and eat him]].

%%* OurGhostsAreDifferent

* [[spoiler:ArtificialLimbs:]] Enati.
* AsskickingEqualsAuthority: No matter if you're younger, if you're powerful enough you can take your older sister's place in the ladder. [[spoiler:That precisely is Enati's plan]]

* [[BigBrotherBully Big Sister Bullies]]: All but Ariel pick on their youngest sister.
* BigSisterWorship: Anshu to Enati.
** Later to [[spoiler:Sheila]] after she get her lower body.

* TheDitz / TheDarkChick: Anshu.

* [[spoiler:[[GodInHumanForm Goddess in Human Form]] / [[PhysicalGod Physical Goddess]]]]
* IdenticalTwinIDTag: She's the one with the LittleBlackDress [[MiniDressOfPower Of Power]].

* [[spoiler:AntiVillain: [[SlidingScaleOfAntiVillains Type 2]] ]]
** After 4 years, [[spoiler:she evolved to [[SlidingScaleOfAntiVillains Type 4]]]] since she still hates Seine.
* AnguishedDeclarationOfLove: And with HandSignals.
* [[spoiler:BackFromTheDead]]
** [[spoiler:CameBackWrong]]

* BlessedWithSuck: [[spoiler: She has the ability to turn her tail into legs and move around on land, but can't go far from the ocean]]. See HeroicRROD below.
* CryCute / InelegantBlubbering: She does [[http://www.mangareader.net/1646-52654-10/hekikai-no-aion/chapter-16.html one]] or [[http://www.mangareader.net/1646-52654-11/hekikai-no-aion/chapter-16.html another]].
* CuteMute
* FishOutOfWater: [[spoiler:Quite literally, since she starts living in Tatsuya's house.]]
* ForcefulKiss: [[spoiler:The way she infects humans on land.]]
** [[spoiler:At the end of chapter 38, she gives one of these to Tatsuya.]]

** HairDecorations: Two blue hair clips.

* TallDarkAndHandsome: with some degree of TallDarkAndSnarky

* CheerfulChild

* CurtainsMatchTheWindow
* TheCutie
** BreakTheCutie: Chapter 3 and 4 did this to her, but thanks to LaserGuidedAmnesia as ResetButton, it was like this never happened.
* GirlishPigtails

* [[spoiler:IGotBigger]]

** SpoiledSweet
* ThirdPersonPerson

** HelloAttorney

* [[spoiler:LikesOlderWomen: He had a crush on Tatsuya's mother, Umi, when he was a teenager]].
* [[spoiler:LovingAShadow: He seems to have a crush on Sheila because she looks like a carbon copy of Umi]].
* {{Megane}}
** ScaryShinyGlasses: When pissed off.

* {{Muggle}}

* SharpDressedMan
* TallDarkAndHandsome

* AnimalEyeSpy: Shizuki can see through the eyes of Chibi Piyo-piyo. [[spoiler:and since Croquet eat Chibi Piyo-piyo, she can see what Croquette sees.]]

* [[spoiler:[[GodInHumanForm Goddess in Human Form]] / [[PhysicalGod Physical Goddess]]]]
* IdenticalTwinIDTag: Shizuki is the one with the [[LittleBlackDress Long Black Dress]]
* IcyBlueEyes

* ImpossibleHourglassFigure
* ManipulativeBitch
* MeaningfulName: Shizuki means "calm moon".
** [[spoiler:Also, her former name. "Pistis Sophia" is the female divinity of gnosticism that means "Faithful Wisdom"]].
* MissionControl

* NoblewomansLaugh
* OjouRinglets

* PrettyFreeloader
* [[spoiler:PutOnABus]]
** [[spoiler:TheBusCameBack]]: In chapter 40.
* Really700YearsOld

* SpotOfTea

* TsurimeEyes