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    Shougo Mikadono 

Shougo Mikadono

Voiced by: Takahiro Sakurai (Japanese), Clint Bickham (English)
https://static.tvtropes.org/pmwiki/pub/images/60331.jpg

The male protagonist who is the heir of the Mikadono Group.



  • Above the Influence: Just barely. In episode 3, both Miyabi and Konoe feed him various supplements to boost his virility, then they spend the night with him in his bed, to "train" him to only like girls after mistaking him for being Ho Yay with Mizutani.
  • Accidental Pervert: Prone to these due to all of the teasing the girls like to do to him, such as when Miyabi intentionally lifts her skirt up in episode 8, then a gust of wind blows through the area.
  • A Date with Rosie Palms: Implied to be done by Shougo in episode 5 when his sister calls him and tells him that he shouldn't be staying up so late doing such naughty things. He doesn't outright deny it, saying he doesn't do that every night. And in the beginning of episode 9, he seems to be doing this, until the camera pans out to reveal his entire body, and shows that he was simply exercising on his bed despite his suggestive grunting.
  • Almost Kiss: Shougo and Konoe nearly kiss in the first episode, but he pulls away at the last second.
  • Balanced Harem: So far Shougo doesn't seem devoted to one particular girl, but Konoe and Miyabi seem to have a slight lead over the rest.
  • Chekhov's Gun: A subtle one, but In episode 1, while hanging out at the park with Konoe, Shougo is introduced to the clock and the distinct music it plays every half hour. This is what helps him find Konoe when she goes missing in episode 4, as it plays in the background when she calls him to say goodbye.
    • Its used again in episode 5 and 6, when Shougo spots Mei's phone which is exactly the same as Konoe's. Except in her case, she was pretending to be his sister to protect his true sister's identity from him, so as to avoid scrutiny and shame for being Shougo's illegitimate sister by their father's company and family.
  • Childhood Marriage Promise: Shougo did this with Miyabi when they were kids in the hospital, and she's held him to that promise ever since he transferred to her school. Cue shocked reaction from both Shougo and Konoe.
  • Covert Pervert: Everyone has varying shades of this.
  • Credits Running Sequence: One happens in the closing credits with him attempting to run away from the main girls in the show.
  • Declaration of Protection:
    • Shougo invokes this in episode 6, when he tells Mei that he wants to know who his sister is in order to protect her and acknowledge her as his sister.
    • He does this again in episode 8, after Rinka tells him about her Arranged Marriage, which she doesn't want, because she believes in marrying for love. He suggests that they pretend to be lovers so that her family would be forced to break off her engagement, and can then choose whoever she wants to really marry. Unfortunately for him, she doesn't want to pretend...
  • Earn Your Happy Ending: In the novels, it turns out that Miyabi is his cousin and Konoe was the illegitimate daughter, but they later discover that she's not blood related to Shougo (since Shougo isn't blood-related to his father Kumagoro). Miyabi's father Kazuma marries Kanoko, Miyabi becomes Shougo's step-sister and Konoe as his lover.
  • Exhausted Eye Bags: Happens to Shougo in episode 5 due to his "sister" calling him almost every day at 6am. Both Konoe and Miyabi notice he's tired, and do various things to try and wake him up.
  • Face Palm: Shougo does one in episode 9 after Yuzurina asks him which girl he's going to bring to the party his mother Kanoko is inviting him to. Naturally she brings it up when all of the main girls are with him, so they fight amongst themselves as to which one he's bringing.
  • Imagine Spot: Has one in episode 5 about marrying Konoe.
  • In-Series Nickname: Shougo is called "Onii-chan senpai" by the freshmen girls in episode 6.
  • Lover Tug-of-War: Konoe and Miyabi do this to him during the opening credits.
  • Love Triangle: While there are other girls, so far the main focus is between Konoe and Miyabi toward Shougo. Both girls refuse to back down in their attempts to win his affections.
  • Mistaken for Gay: In episode 3 when Miyabi and Konoe both walk in on his apartment while Mizutani is on top of him in bed. They go to ridiculous lengths to make sure he likes women, such as waking him up in bed, making him food, and later, taking a bath in his apartment, as well as snuggling up to him. The girls accuse them of this again in episode 12.
  • Nice Guy
  • New Transfer Student
  • No Guy Wants to Be Chased: Particularly as one of the girls chasing him claims to be his biological sister. But Konoe and Miyabi both tend to go overboard in their attempts to woo him.
  • The Plan: In episode 5, after the previous episode established that Shougo's calls from his little sister are actually from Konoe, he receives more calls everyday at 6am from a girl claiming to be his sister. As a result, he was tired at school, and took naps in Mei's secret room at school, and also learned more about Mei's cafe shop and how it used to belong to her mother. Then he learns from one of the girls working there that Mei was selling it and moving to America, so he confronts her about it in episode 6.
  • Scars Are Forever: Shougo has one on his forehead. Apparently, he got it after he was hit by a car when he was younger.
  • Smarter Than You Look: Despite being depicted as a normal high school student, he has been able to deduce many things on very little evidences and comments he hears.
  • Thanks for the Mammary: Shougo does this accidentally to Rinka in episode 2 after Mana accidentally knocks them over.
    • He does it again in episode 8, although this time it was due to the ride they were in losing power and everything going black, as well as Rinka panicking during the blackout.
  • Unwanted Harem: Largely thanks to the fact that the girls at his school know his last name, and that he's the son of the successful business owner who died recently. And also because he's a genuinely Nice Guy.

    Konoe Tsuruma 

Konoe Tsuruma

Voiced by: Kaori Ishihara (Japanese), Monica Rial (English)
https://static.tvtropes.org/pmwiki/pub/images/176719.jpg

A black-haired young girl who attends the same school as Shougo and also the first friend he makes on his first day of his new life.



  • Almost Kiss: Shougo and Konoe nearly kiss in the first episode, but he pulls away at the last second.
  • Censor Steam: Rather than steam however, they darken the areas where Konoe's skirt lifts up in the broadcast version of episode 6.
  • Clingy Jealous Girl: After seeing Mizutani getting a bit too friendly with Shougo in episode 3, both Miyabi and Konoe both go to great lengths to make sure he's not batting for the other team. He ends up running away from both of them at school as a result of this, and they both invoke this trope again when they accuse each other of trying to get ahead with him in a relationship.
  • Covert Pervert: Everyone has varying shades of this.
  • Does This Remind You of Anything?: When Konoe is cosplaying as a cat maid in episode 6, her tail is acting erratically, and Shougo tries to help her with it. But as he rubs and pulls on the tail, Konoe seems a bit too excited by it. Oh, and Episode 9 too, where Shougo and Konoe make weird sounds during the beginning when Shougo was exercising and near the end of the second half where Shougo tickles Konoe unless she leaves his bed.
  • Fantastic Arousal: Konoe's artificial tail is rather.. sensitive.
  • First Girl Wins: Shougo eventually chooses Konoe, the first girl he met at his new school, in the later novels.
  • Forgotten Childhood Friend: Justified, as he got hit by a car saving Konoe, which caused his memory loss, as well as strife between their fathers, which caused them to not be able to see each other again for a while.
  • Friendly Tickle Torture: In episode 9 after Shougo eats dinner Konoe makes for him, she says she's dessert and won't leave his bed until he "eats" her. He then starts to tickler her in an attempt to get her off his bed.
  • Hair Decoration: Has a white bow in her hair.
  • If It's You, It's Okay: When Shougo asks for a DNA sample from Konoe's "mucus membrane" in episode 7, she's hesitant at first, but eventually relents, saying this. She then bends down and proceeds to drop her underwear, prompting Shougo to clarify that he just needed it from the inside of her cheek. Cue Konoe's face turning beet red.
  • Ink-Suit Actor: A coincidental example. Konoe resembles her voice actresses Kaori Ishihara and Monica Rial.
  • Lover Tug-of-War: Does this to a Super-Deformed Shougo during the opening credits.
  • Love Triangle: While there are other girls, so far the main focus is between Konoe and Miyabi toward Shougo. Both girls refuse to back down in their attempts to win his affections.
  • Rapunzel Hair: Konoe's long hair reaches past her buttocks.
  • Shameless Fanservice Girl: She does this occasionally, fully intending to seduce Shougo.
  • Tomboy and Girly Girl: The Girly Girl to Miyabi's Tomboy.
  • Troll: Turns out that in the early episodes, the girl claiming to be Shougo's sister was actually just Konoe screwing with him. And she seemed to really be enjoying it, up until he suspected that Miyabi was the one calling him and was in fact his sister, which caused her to then go into a My God, What Have I Done? moment.
  • Zettai Ryouiki: In her school uniform and the maid uniform.
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    Miyabi Kannagi 

Miyabi Kannagi

Voiced by: Ayane Sakura (Japanese), Brittney Karbowski (English)
https://static.tvtropes.org/pmwiki/pub/images/kono_naka_ni_hitori_imouto_ga_iru_miyabi_kannagisamsung_galaxy_note_3_wallpaper_1080x1920.jpg

Another classmate of Shogo and a member of the swimming club.



  • A-Cup Angst: Other times she acts with Petite Pride.
  • Barbie Doll Anatomy: Happens briefly to Miyabi in episode 10 shortly after she's done taking a shower.
  • Cant Hold Her Liquor: Miyabi gets drunk after one glass of wine in episode 10, which she mistook for grape juice. According to Sagara, she took it in one gulp.
  • Childhood Marriage Promise: Shougo did this with Miyabi when they were kids in the hospital, and she's held him to that promise ever since he transferred to her school. Cue shocked reaction from both Shougo and Konoe.
  • Cute Little Fang: She has one, but is only shown when she opens her mouth wide.
  • Distracted by the Sexy: Miyabi deliberately invokes this in episode 8, when she arrives at school wearing a skirt that seems a bit too short, and forces Shougo to measure it. But she keeps teasing him and asking if he wants to look up her skirt, to which he hesitantly says no. Konoe then arrives, and demands he measure her skirt as well. Then a wind gust blows through, and both girl's skirts are lifted. Shougo claims he didn't see anything, but then he mentions Miyabi wearing shorts, which angers her because that meant he looked up her skirt when the wind blew.
  • Forgotten Childhood Friend: While recovering at the hospital, he met Miyabi there while Kazuma was getting check ups, until he no longer needed them, and they were separated again until high school.
  • Girlish Pigtails
  • The Glomp: She has her moments in later episodes.
  • Love Hurts: Miyabi doesn't seem very happy in episode 9 when she sees Shougo about to kiss Konoe.
  • Lover Tug-of-War: Does this to a Super-Deformed Shougo during the opening credits.
  • Love Triangle: While there are other girls, so far the main focus is between Konoe and Miyabi toward Shougo. Both girls refuse to back down in their attempts to win his affections.
  • Modesty Shorts
  • Moment Killer: Miyabi spots Konoe and Shougo sitting on a bench together at the end of episode 4 in the park, right as it seemed the two were going to kiss. She then goes into Clingy Jealous Girl mode, and wonders why Shougo had her running around looking for Konoe, just to find them spending time alone together. She also accuses Konoe of cheating to try and get ahead of her with Shougo.
    • She does it again when Shougo was about to kiss Konoe in episode 9, Miyabi just happened to be walking within the vicinity. She doesn't say anything and hides immediately, but it was enough to stop them from kissing when Shougo thought he saw someone in the area.
  • Older Than They Look: She is Shougo's age, but looks a lot younger, mainly because of her height and hairstyle.
  • Parental Abandonment: She reveals to Shougo in episode 12 that her mother left her and is only seen rarely nowadays.
  • Petite Pride: After she concludes that maybe Shougo would rather see small breasts like hers rather than big ones like Konoe's.
  • Please Don't Leave Me: Gives a Tear Jerker plea to Shougo in episode 10, while naked and on top of him no less.
  • The Reveal: In episode 4, after Shougo tells Konoe about what happened between him and Miyabi from episode 3, she realizes she went too far with the little sister phone calls. She then tells Shougo that she's not his sister, and knew him from childhood, and he saved her from getting hit by a car, hence the injury to his forehead. While Shougo is glad that the phone calls weren't from his actual sister, he still wonders who showed up at Kumagoro's funeral that day.
  • Shameless Fanservice Girl: She does this occasionally, fully intending to seduce Shougo.
  • Skinship Grope: Miyabi grabs Konoe's breasts at the pool in episode 9 after the two girls exchange insults regarding their bodies and the way it affects their swimming.
  • Tomboy and Girly Girl: The Tomboy to Konoe's Girly Girl.
  • Tsundere: Surprisingly she shows more of a Type B "deredere" than Type A "Tsuntsun" toward him after their initial meeting.

    Rinka Kunitachi 

Rinka Kunitachi

Voiced by: Ayana Taketatsu (Japanese), Maggie Flecknoe (English)
https://static.tvtropes.org/pmwiki/pub/images/176717.jpg

Rinka is the blonde first-year student council vice-president of Miryuin Private Academy and it is implied that she was brought up in a noble family.



  • Absurdly Powerful Student Council: Rinka cracks down on things she deems immoral after Shougo's sister makes an announcement over the school's public announcement system, while some prominent business officials were visiting. She also makes him the morality officer, although he doesn't seem to be doing the job very well considering the girls are wooing over him still. And it later turns out that Rinka was responsible for the announcement.
  • Arranged Marriage: Rinka is stuck in one, and doesn't seem very happy about it, as she's not interested in the guy her family set her up with but can't go against it because it's for business purposes.
  • Clingy Jealous Girl: She makes claims as to why she should be taken to the social party that Shougo's mom set up for him, and tells him to bring a date.
  • Cloudcuckoolander's Minder
  • Covert Pervert: Everyone has varying shades of this.
  • Double Standard: Abuse, Female on Male: Despite it being a total accident thanks to Mana, Shougo gets a roundhouse kick to his head from Rinka in episode 2 and again in episode 8 only he gets slapped instead.
  • Getting Crap Past the Radar: When Rinka and Shougo are at the amusement park, they enter a dark ride and Rinka gets blasted by liquid in a manner consistent with a girl who just had sex.
  • Ink-Suit Actor: Rinka resembles her English voice actress Maggie Flecknoe.
  • Love Confession: Rinka does this to Shougo (naked, too) when she wants to have a real relationship rather than the fake one so she could get out of an Arranged Marriage.
  • Number Two: To Mana in the student council.
  • The Ojou
  • Relationship Upgrade: Invoked at the end of episode 8, with Shougo suggesting it to help Rinka break off her engagement with one of her family's business partner's son. Although he only meant to pretend it so that she would then be free from the engagement, and therefore able to choose whoever she wants, Rinka is more than happy to apply the trope to them, and takes off most of her clothing so they can become "real" lovers, instead of just pretend ones. Later, she brings him a huge lunch, and says that her father Genda approves of him dating her, as well as an eventual marriage, much to his shock. Cue an enraged Konoe and Miyabi who demand to know what exactly happened, as the camera pans up while Shougo screams.
  • The Comically Serious: Usually, but she's Not So Above It All on the next episode previews where we clearly see her chasing a butterfly.
  • Tsundere: When she wonders if she really acts like this, both Mana and Shougo give her a weird stare.

    Mana Tendou 

Mana Tendou

Voiced by: Asuka Oogame (Japanese), Emily Neves (English)
https://static.tvtropes.org/pmwiki/pub/images/176715.jpg

The student council president of Miryuin Private Academy.



  • Balloon Belly: Mana looks visibly pregnant in Episode 10 after pigging out at the Mikadono group party.
  • Big Eater: She can put away quite a bit of food.
  • Clingy Jealous Girl: She makes claims as to why she should be taken to the social party that Shougo's mom set up for him, and tells him to bring a date.
  • Cloudcuckoolander: She tends to have these moments, much to Rinka's chagrin.
  • Genki Girl
  • The Glomp: Does this to Shougo after he's done dancing with Rinka and it doesn't end well for them.
  • Informed Ability: The School President is been said to be serious when it comes to her work but will act childishly when having fun. So far every time she is on screen she is just acting childishly.
  • Student Council President

    Mei Sagara 

Mei Sagara

Voiced by: Rina Hidaka (Japanese), Margaret McDonald (English)
https://static.tvtropes.org/pmwiki/pub/images/176713.jpg

A third-year silver-haired bespectacled girl who dresses as a witch. She runs the Lyrical Sister Café which she describes as "a dream-like café where anyone can become an older brother or older sister!"



  • Clingy Jealous Girl: She makes claims as to why she should be taken to the social party that Shougo's mom set up for him, and tells him to bring a date.
  • Cute Witch: She dresses up like one as part of her standard outfit. She even dresses as one in episode 10 during the formal event.
  • Flower in Her Hair: Has one that ties her braid together.
  • Meganekko
  • Nice Hat: She wears a nice witch hat all the time.
  • Proper Tights with a Skirt: Mei wears this with her school uniform.
  • Secret Keeper: Mei had intended to keep one from Shougo, for good reason.

    Yuzurina Houshou 

Yuzurina Houshou

Voiced by: Yui Ogura (Japanese), Meaghan Avocato (English)
https://static.tvtropes.org/pmwiki/pub/images/1896.jpg

A mysterious girl who poses as Shougo's real sister.



  • Clingy Jealous Girl: In episode 9, as she spots one of Mizutani's hairs on his floor, then sniffs his bed to find the scent of a woman on it. Later, she listens in on Konoe's Fantastic Arousal and slams the wall when she thinks they're taking it too far.
  • Early-Bird Cameo: She can be seen with the board of directors visiting the school in episode 7, but we're not given any indications that its her other than a subtle smile towards him. It's also unusual that her hair is black in that episode, but then is brown in episode 9 when she reveals herself to him. Although it could be that she was trying not to seem too obvious to him and simply dyed her hair at the time.
  • Evolving Credits: After episode nine, Yuzurina replaces Shougo's sister's silhouette during the opening credits. She is also among the girls during the next episode preview at the end.
  • Expy: She looks VERY similar to Toki in Saki Achiga Hen. They even share the same voice actress.
  • Long-Lost Relative: Since she's Shougo's sister.
  • Manipulative Bastard: Yuzurina aka Denno Nayuri, although being an actress, she puts on a largely good act until things start to unravel around episodes 11 & 12.
  • Nose Bleed: Yuzurina suffers one in episode 9 when she thinks Konoe and Shougo are doing naughty things in his room.
  • Walking Spoiler: Absoultely,.
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    Ikusu Mizutani 

Ikusu Mizutani

Voiced by: Ami Koshimizu (Japanese), Kara Greenberg (English)
https://static.tvtropes.org/pmwiki/pub/images/211161.jpg

A member of the Seiryu Association. She was sent to investigate on the identity of Shogo's younger sister while disguising herself as a male student in Miryuin Private Academy.



  • Bishie Sparkle: Mizutani has this around her when she's walking home with Shougo in episode 2. Since she's supposed to be a guy, the fact that she was clinging to his arm the entire way home made some of the students suspect they were gay.
  • Innocent Fanservice Girl: Mizutani is unaware of how babies are made, and after Shougo hands her a pamphlet on how it's done, she immediately wants to "practice" it with him. Then Miyabi and Konoe walk in on them as Mizutani is on top of him in bed. She cranks it Up to Eleven in episode 7, stretching out while wearing nothing but a towel around her shoulders. While Shougo is still uncomfortable around it, he seems to less offended by than he originally was.
  • Moment Killer: Mizutani calls Shougo in episode 6 just as Mei was beginning to slowly undress herself in front of him to ask him to look for her hat which she forgot at the cafe earlier. He doesn't find it, but it stops Mei from attempting her advances on him, and it turns out Mizutani had her hat, and simply called him to interrupt what Mei was doing. Shougo then wonders if Mizutani had cameras spying on him in there, to which she neither confirms nor denies.
  • Nice Hat: Mizutani often wears one. In fact, it's her trademark when she's in disguise.
  • New Transfer Student: When it happens to Mizutani, one of the students asks why their class suddenly got two new students.
  • Sexy Discretion Shot: Used quite heavily with her, since she likes to exercise in Shougo's apartment naked. Although, most of it's uncensored in the DVD version.
  • Sweet Polly Oliver: Revealed within minutes in the same episode (as well as the opening), and Shougo initially thought she really was a man during their first encounter. She claims to be doing this under the guise of discovering which girl is his sister at the school, but Shougo wonders about her tactics at times.
  • Wacky Marriage Proposal: Mizutani suggests this to Shougo as a means to resolve his issue of not knowing which girl is his sister. He immediately rejects the idea.

    Kumagoro Mikadono 

Kumagoro Mikadono

Voiced by: Rikiya Koyama (Japanese), John Swasey (English)
https://static.tvtropes.org/pmwiki/pub/images/f11150c02d.jpg

Shogo's father, who was the chairman of the Mikadono Group.



    Kanoko Mikadono 

Kanoko Mikadono

Voiced by: Aya Hisakawa (Japanese), Shelley Calene-Black (English)
https://static.tvtropes.org/pmwiki/pub/images/kanoko_mikadono_nakaimo_my_little_sister_is_among_them_839.jpg

Shogo's mother. She becomes the acting chairman of the Mikadono Group until Shogo is ready to take over.



    Maiko Kotori 

Maiko Kotori

Voiced by: Arisa Noto (Japanese), Tiffany Grant (English)
https://static.tvtropes.org/pmwiki/pub/images/193675.jpg

She is the diminutive homeroom teacher in the class Shogo attends.



  • Sensei-chan: Shougo's homeroom teacher who looks and sometimes acts like she's younger than the rest of the girls.
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