!Main Characters

[[folder:Youto Yokodera]]
!!Youto Yokodera
->'''Voiced by:''' Creator/YuukiKaji (teenager) and Creator/MikakoKomatsu (child)
The main protagonist and a second-year member of the track-and-field team, just so he can find a convenient excuse to peek at girls in swimsuits at the school pool, which is nearby the track oval. Wishing to get rid of his "PR façade", one night he makes an offering to the "Stony Cat" together with another wisher, Tsukiko Tsutsukakushi... and now he cannot help but air what's on his mind, no matter how perverse.
* AccidentalHero: Some of his gripes about his PR façade is that he tends to do awesome things without even intending to.
* AccidentalPervert: Accidentally sees Tsukiko naked a couple of times.
* AlliterativeName: '''Y'''outo '''Y'''okodera
* AnimalMotifs: Dogs.
* BishieSparkle: His 6-year-old self does it a couple of times.
* CovertPervert: Before wishing to make himself honest, he went along with everyone's assumption that he was a model citizen and didn't let on that he was a massive pervert willing to do anything in order to peep on girls.
* DidIJustSayThatOutLoud: One unintended consequence of his wish is that he will always speak his mind out.
* EmbarrassingNickname: "Hentai Ouji" ("Pervert Prince"), on account of his post-wish inability to conceal his perverse thoughts.
* EveryoneHasStandards: Even a raging pervert like him is ''genuinely'' squicked out over how Mai is just as perverse-tongued as, if not even more than, himself.
* ExpressiveHair: The IdiotHair on his 6-year old self can do this.
* FatalFlaw: While he's not an idiot, he tends to panic and react without thinking things through.
* FirstKiss: [[spoiler:With Azusa. Tsukiko is not amused that the former has already beaten her to it.]]
* ForgottenFirstMeeting: Doesn't remember that he already met Tsukiko a year prior to the start of the series, as she was wearing a mask then. [[spoiler: Turns out this is a consequence of his wish to the Stony Cat when he was young, as he also doesn't remember Tsukushi and Emi despite meeting them before the story.]]
* GagPenis: The euphemism compares it to an elephant trunk.
* IdiotHair: His 6-year-old self has one sticking-up lock of hair.
* LargeHam: His shouting and gesticulating can get really over-the-top.
* LaserGuidedAmnesia: [[spoiler:Made a wish to give Tsukushi his memories of her mother ten years prior to the story. It causes him to lose memories of any girls he meets that are separated from him long enough. This causes lots of problems throughout the series for several girls.]]
* LooseLips: He just can't keep his big mouth shut, leading to unnecessary trouble.
* LovableSexManiac: Post-wish. Also [[DeconstructedTrope deconstructed]], as he finds his world being turned upside-down by his ''complete'' inability to sugarcoat his perverted thoughts.
* NiceGuy: Perverse streak aside, Youto is actually a pretty affable, good-natured boy who's more than willing to put his dignity ([[spoiler:as well as his own memories]]) on the line if it will ultimately help the people he genuinely cares for, such as Tsukiko and Azusa.
* ObliviousToLove: Has no clue about Azusa's affections for him. [[spoiler:However, after stealing her first kiss, her affections become so overt that it's impossible for him not to notice.]]
* ThanksForTheMammaries: Accidentally gropes Tsukushi's boobs on one occasion.
%%* SecondYearProtagonist

[[folder:Tsukiko Tsutsukakushi]]
!!Tsukiko Tsutsukakushi
->'''Voiced by:''' Creator/YuiOgura
A first-year girl with a shy, fragile disposition, she wished to become more mature to the "Stony Cat" together with Youto... only to discover that she has become completely unable to make facial expressions.
* ACupAngst:
** Silently scratches Youto's DVD collection featuring busty women with a pair of scissors. And then perks up the moment Youto mentions his tastes have "changed", going as far as to inquire ''how'' they have changed. [[BlatantLies Just for reference]], of course.
** When cleaning up his room, she throws out all his "material" featuring busty women, yet keeps those with petite girls.
** In episode 11, while trying out a bra, Youto accidentally walks in on her. After she uses it to cover his eyes, he says that they're too big for her, followed shortly by her knocking him unconscious for bringing that up.
* AlliterativeName: '''T'''sukiko '''T'''sutsukakushi
* AnimalMotifs: Cats.
* BewareTheQuietOnes: Despite being unable to express herself, Tsukiko is surprisingly aggressive in her interest in Youto, and accepting towards his... tendencies. And in Episode 6, after watching Azusa and Tsukushi do a LoverTugOfWar on Youto, she mentions how she hates people who waste food. All three of them immediately stop, and begin eating and mentioning how awesome the food is.
* BigEater: Frequently seen with various kinds of snacks in hand, and seems to prefer her food super-sized.
* BrokenBird: Shows some issues with her relationship with her sister Tsukushi.
* [[CantHoldHisLiquor Can't Hold Her Liquor]]: She gets drunk easily by ''smelling'' alcohol.
* ClingyJealousGirl: Although more subtly than Azusa, she also doesn't like it when Youto is spending time with other girls, especially when she's around. And in episode 12, she's not happy to hear [[spoiler:that Azusa beat her to the punch with Youto's FirstKiss.]]
* TheComicallySerious: Not by choice, as a result of her wish.
* DullSurprise: She can't even scream properly.
* EmotionlessGirl: Post-wish.
* ExpressiveHair: When she sees a 6 year old Youto in episode 11, his hair is moving on its own. Part of her hair immediately does the same thing.
* FirstKiss: [[spoiler:With Youto.]]
* FragileFlower: Pre-wish.
* LittleMissSnarker: Post-wish.
* NotSoAboveItAll:
** In episode 6, Youto catches her singing a tune he mentions he was singing earlier when he walks into the kitchen and sees her making food. He then sees her wearing his shirt, and she mentions that she was merely using it as an apron because she couldn't find hers. Youto then mentions that in an earlier DatingSim game he played, one of the girls wore the shirt of their love interest so that they could smell them and feel closer, which causes her to blush and try to change the subject.
** By the end of the light novel, [[spoiler:Tsukiko is clearly a [[CovertPervert Covert Pervert]]. She always sniffs Youto' smell whenever she is around him. And then calling it "to replenish my energy".]]
* OlderThanTheyLook: She looks rather young for a tenth-grader.
* SayingSoundEffectsOutLoud: Tends to do this.
* StealthHiBye: She sometimes shows up out of nowhere, such as when Youto was talking to Tsukushi at their house, and she suddenly shows up behind him.
* ThirdPersonPerson: Refers to herself in the third person in her side story "A cyber attack".
* TranquilFury: Post-wish. Especially when she feels jealous at Youto for being close to other girls.
--> ''"I see... I see."''

[[folder:Azusa Azuki]]
!!Azusa Azuki
->'''Voiced by:''' Creator/KaoriIshihara
A second-year transferee and self-proclaimed "ojou-sama" with a mean streak.
* ACupAngst: Unnerved by Youto's unrestrained comments about her chest, and seeing Tsukushi's impressive bust.
* AllOfTheOtherReindeer: Was bullied in her previous school [[spoiler:(or so she thought)]].
* AlliterativeName
* AnimalMotifs: Turtles and dogs.
* BecauseYouWereNiceToMe: Falls in love with Youto after realizing that Youto's desire to help her is genuine.
* BrokenBird: Was the victim of bullying in her previous school [[spoiler:(or rather, gravely misunderstood her schoolmates' pranks which were meant as friendly overtures)]] and has since put up a RichBitch façade.
* ClingyJealousGirl: She doesn't like Youto paying attention to other girls, such as when Tsukushi attempts to flirt and seduce him openly in front of her in episode 6.
* CovertPervert: Secretly wants Youto to see her in a bikini, and do various "stuff" to her.
* CryCute: The end of the first half of Episode 3, after Youto apologizes to her for lying to her into facing her past.
* DudeWheresMyRespect: [[spoiler:While it's technically the cat god statue saying this to Youto, she laments about how she puts up with and does all of these favors for him, only not to get anything meaningful in return. Youto then "pays" her back with a kiss.]]
* {{Expy}}: Being a petite blonde that puts up an "ojou-sama" facade/lifestyle to hide her lower class status makes her quite similar to Mio Aoyama from ''Manga/TheWorldGodOnlyKnows''.
* FloweryInsults: Tends to break into bursts of continuous, creative insults based on animals (e.g. calling him a "stupid spotted hippopotamus" or a "big bald bear who betrays all the bunnies you bluff") whenever she feels displeased at Youto.
* FirstKiss: [[spoiler:With Youto.]]
* FragileFlower: Pre-wish.
* GirlishPigtails: When swimming.
* GrandTheftMe: [[spoiler:When she wishes to be a "new person", the Stony Cat possesses her and take over whenever it sees fit.]]
* HotBlooded: She tends to get a bit too excited and/or angry with Youto at times, particularly when he doesn't answer her calls.
* NeverBeHurtAgain: Her reasons for putting on a RichBitch façade.
%%* NewTransferStudent
* OlderThanTheyLook: One year older than Tsukiko, but does not look so.
* RapunzelHair: Reaches her hips let down.
* RichBitch: Subverted -- as it turns out, she comes from a middle-class family, taking up three part-time jobs to afford all her luxuries.
%%* SecondYearProtagonist
* ShanaClone: Petite physique (both vertically and [[ACupAngst horizontally]]), RapunzelHair with a {{Tsundere}} attitude.
* SlaveCollar: As part of her canine motif.
* SpeaksFluentAnimal: Canine language, to be specific.
* {{Tsundere}}: Type A post-wish. Also [[DeconstructedTrope deconstructed]], as it turns out not only did she inherit Youto's "PR façade", but also as a coping mechanism for being bullied back in her previous school [[spoiler:(or so she thought)]]. After she and Youto revert their wishes, she becomes Type B for the guy. [[spoiler:After getting her first kiss stolen by him, she becomes dere-side-up.]]
* ZettaiRyouiki: Grade A with black thigh-high stockings.

[[folder:Tsukushi Tsutukakushi]]
!!Tsukushi Tsutsukakushi
->'''Voiced by:''' Creator/YukariTamura
Tsukiko's older sister and the notoriously stern captain of the track and field team.
* AlliterativeName: '''T'''sukushi '''T'''sutsukakushi
%%* AloofDarkHairedGirl
* AloofBigSister: Keeps her little sister at arms length, but it turns out she actually loves her a great deal and has her reasons for treating her this way.
* BoobsOfSteel: She has the biggest bust and is capable of crushing apples and watermelons with her bare hands.
* BrokenBird: Like her sister, Tsukushi's stern attitude also hides some deep-seated issues.
* ClubPresident: Of the track team.
* {{Cloudcuckoolander}}: Beneath that stern exterior hides a rather absurd thought process.
* TheComicallySerious: Creates comedy by responding in her usual serious way to ridiculous situations.
* CovertPervert: In episode 8, when Tsukushi visits Youto's house, she looks at one of his picture albums. At one point Youto asks her why she keeps taking pictures of him out of the album. She casually dismisses it, saying it must be her hand acting on its own. If you pay attention to her hand, she's actually [[FreezeFrameBonus stealing them]] and putting it inside her shirt. She later casually mentions that rubbing her face with said pictures in episode 10 while discussing a possible ForgottenFirstMeeting with him.
* GagBoobs: They are prone to {{Gainaxing}}, and are subjects of various jokes throughout the series.
-->'''Youto:''' "Hey President, since which grade did your breasts start to grow?"\\
''(Cue smackdown)''
* HairTriggerTemper: As Youto finds out, talking to her is like treading on a minefield, especially when Tsukiko is concerned.
* HiddenDepths: [[spoiler:Her romantic love for Tsukiko stems from the fact that they only have each other for family after their parents were killed in a car accident years ago, as Youto discovers when he hears her [[TalkingInYourSleep talking in her sleep]], tearfully begging Tsukiko to [[PleaseDontLeaveMe never leave her all alone]].]]
* InsaneTrollLogic: Her plan to [[spoiler:marry Tsukiko]] runs on this -- [[spoiler:by disowning her, she would have legal rights to marry her in Massachusetts, [[ShownTheirWork where same-sex marriage is allowed]]. Unfortunately for her [[DidntThinkThisThrough incestuous marriage is still banned there]], even with familial disinheritance at work]].
* JerkassFacade: Seems to disown Tsukiko... then it turns out that she's only doing this so [[spoiler:she can marry her]].
* RedBaron: "Kotetsu no Ou" -- the "Steel King".
* RedHerring: [[spoiler:Turns out she didn't cause the typhoon.]]
* {{Schoolgirl Lesbian|s}}: [[spoiler:Attracted to her little sister and schoolmate Tsukiko]].
* BiTheWay: [[spoiler:Starts out desiring her little sister. Later, she falls for Youto, who she still thinks is his own younger twin.]]
* BrotherSisterIncest: [[spoiler:She's ''really'' hot for Tsukiko.]]
* [[SergeantRock Team Captain Rock]]
* SmallNameBigEgo: A little too confident about her intelligence.
* StalkerShrine: While not necessarily a stalker, she does have shrine dedicated to [[spoiler:Tsukiko]].
* TomboyishPonytail

!Minor Characters
[[folder:Minor characters]]
->'''Voiced by''': Creator/HirofumiNojima (teenager) and Creator/YumiUchiyama (child)

Youto's best friend, who has a pet rabbit named Yaji-san.
* BromanticFoil

!!Moriya and Morii
->'''Voiced by''': AyaSuzaki (Moriya) and Minami Takahashi (Morii)
Azusa's former schoolmates who "bullied" her in the past. [[spoiler:Turns out, they try to pull a prank on Azusa trying to get her to open up and it's backfires terribly]].
* AmbiguouslyBrown: Unless they're Ganguro.
* TheAtoner: Spent their beach vacation with Azusa as a way to atone for unintentionally hurting her feelings, ending with them directly apologizing to her for that prank.
* BuxomIsBetter: Much to [[ACupAngst Azusa's chagrin]].
* InnocentlyInsensitive: They just wanted to make friends with Azusa. Unfortunately, their methods backfired horribly, and they never knew of its consequences until Youto told them right in their faces.
* MyGodWhatHaveIDone: Their reaction when finding out the grave consequences of their prank.
* ThoseTwoGirls

!!Mai Maimaki
->'''Voiced by''': Yuka Terasaki
The Vice President of the track and field.
* AlliterativeName: '''M'''ai '''M'''aimaki
* ClingyJealousGirl: She acts hostile towards Youto largely because she hates how close Tsukushi is to him and even prefers him to succeed her post (it also doesn't help that she is hinted to have a crush on her). [[spoiler:Later novels reveal that she also resents the ease with which Youto makes friends, in contrast to how her cold personality puts others off.]]
* CovertPervert: See HypocriticalHumor below.
* GenreSavvy: Of her teammates, she is the first to notice Tsukiko, Azusa and Tsukushi falling in love with Youto.
* HypocriticalHumor:
** Loves to snark at Youto's perversion but does it using incredibly explicit vocabulary that manages to creep every team member out ([[EveryoneHasStandards especially Youto]]), and has an underwear fetish.
** [[UpToEleven Took a whole new level in volume 6 of the light novel]]. [[spoiler:After she switched body with Youto by wish, she jerked off relentlessly, to the point when Youto got his body back, his crotch and right hand got totally numb. And she took all of his underwears too.]]
* JerkWithAHeartOfGold: Quite unnecessarily rude and hostile, which contributes to her solitary reputation. Nonetheless, Tsukushi is the only person she shows due respect, and is willing to do anything to make her happy, even if it means swallowing her ego and [[spoiler:going on a proxy date with Youto, whose kindness ultimately reaches her, making him Mai's first true friend]].
* SchoolgirlLesbians: Strongly implied in the last episode when she goes to the amusement park with Tsukushi and the other main characters, along with her holding a body pillow with a picture of Tsukushi on it during episode 12's EyeCatch.
%%* TallDarkAndSnarky
%%* TomboyishPonytail

!!Emanuela "Emi" Pollarola
->'''Voiced by''': Aimi Terakawa
A mysterious girl from Italy, whom Ponta introduced as his sister.
* BeCarefulWhatYouWishFor: What do you think happens when a 10 year old is given the ability to make everything she wants come true? [[{{Deconstruction}} Disaster, of course]].
* BrattyHalfPint: Tsukiko is not amused by her childish attitude.
* DynamicEntry: Makes her entrances by landing feet first onto Youto's face.
* FloweryInsults: Towards Youto, based on vegetables, especially pumpkins.
* GirlishPigtails

!!Tsukasa Tsutsukakushi
->'''Voiced by''': Creator/HarumiSakurai
Tsukushi and Tsukiko's deceased mother.
* TheAlcoholic: Drinks plenty of beer onscreen, which does not do her health any favor.
* AlliterativeName
* IncurableCoughOfDeath
* MissingMom: Passed away ten years prior to the story.
* OralFixation: Frequently seen with a lollipop in her mouth.
* ParentalAbandonment: 6-year old Tsukushi believes Tsukasa essentially did this, because she never once visited them in Italy. [[spoiler:Turns out she was wrong, and Tsukasa couldn't go because she was too ill to travel, but tried to show her love for them by making clothes, which she used 6-year-old Youto to test on.]]
* {{Tsundere}}: Type A towards young Youto. She kept telling him off, but enjoyed his company.

!!Nekogami/The Cat God/Warawanai Neko/The Stony Cat
->'''Voiced by''': Yurika Kubo
The titular wish-making cat god.

* BeCarefulWhatYouWishFor: It tends to give you want you want and more than what you bargained for.
* JerkassGenie[=/=]JerkassGod: More interested in making wishes "come true" and expecting its "customers" to keep their own end of the bargain than considering any grave consequences its methods can bring. In the anime at least it is also somewhat obviously evil, but everyone is way too GenreBlind to realize it (read the main article for details).