Characters / Lovely Complex

Characters in Aya Nakahara's Lovely Complex!

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    Main Characters 

Risa Koizumi
Voiced by: Risa Hayamizu (Drama CD), Akemi Okamura (anime)

Risa is 172 cm tall and thin and has light red hair and brown eyes.

Risa is seen as impulsive and strong-willed, rarely willing to display her softer side. She is a tsundere. She is also very clumsy and apparently talks a lot, usually in not such a good way.

It is strongly stated by the other characters that she is very funny for a girl and a fun person to hang out with. At the same time, she also implies she is not cute and girly, the type of girls that are very appreciated in Japan, possibly due to her tall stature. Her favorite artist is Umibozu, her admiration for him going to the point of obsession.

  • A-Cup Angst: After meeting Hitomi, a rather buxom woman who flirts with Atsushi, Risa comments that she has no breasts with a rather dejected look on her face.
  • Angrish: Slips into this occasionally, when she gets very irritated (frequently by Otani's remarks).
  • Animal Motifs: She is often associated with bunnies, and has a lot of bunny-shaped stuff in her possession.
  • Attention Deficit... Ooh, Shiny!: Koizumi can instantly drop angst, romance, or anything she's doing at the moment when she sees swimming pools, rickshaws, or Umibouzu.
  • Aww, Look! They Really Do Love Each Other: Often has these moments with Otani, despite their sexual tension.
  • Bad Liar: Anyone could see what she's thinking because it's written all over her face.
  • Belligerent Sexual Tension: With Otani. Their relationship starts like this, although it's entirely seen from a tsundere's perspective, with Otani often acting as a Jerk with a Heart of Gold.
  • Birds of a Feather: With Otani. Nobu and Nakao are very aware that they have many things in common aside from their height. and in the manga, they obtained 100% compatibility at the Love Machine.
    Otani: Maybe our compatibility...really is 100% after all!
    Koizumi: ...(Surprised)
  • Blonde, Brunette, Redhead: The Redheaded Girl to Nobu's Blonde and Chiharu's Brunette.
  • Boke and Tsukkomi Routine: Koizumi is usually the Tsukkomi, though after the Relationship Upgrade she acts more like the Boke to Otani's Tsukkomi.
  • Book Dumb: Risa is depicted as not being very smart, since she is doing poorly in school and she is also seen sleeping in class.
  • Bunnies for Cuteness: She has an affliction for things shaped like bunnies, such as: a red purse, a necklace, a ring, her cellphone, bath items, among other things.
  • Caught the Heart on His Sleeve: To Otani, to physically stop him from walking over to talk to his ex-girlfriend.
  • Childhood Friend: Risa has been friends with Haruka since they were in Elementary School.
  • Class Clown: With Otani. They are seen as their class' comedy pair known as the "Hanshin-Kyojin" and usually play the Boke and Tsukkomi Routine around their peers (classmates and teachers included).
  • Class Representative: With Otani. Averted, because they are actually the "Class Clowns".
  • Cry Cute: She looks pretty when she is crying, usually after being rejected (many times) by Otani.
  • Cute Clumsy Girl: She is very clumsy (and she is often falling around, like that time at the Umibouzu's concert), even in moments when she doesn't have to be acting like that (such as the time she was standing in row with the rest of her class... when she was falling asleep and snoring loudly).
  • Dogged Nice Girl: She becomes this when she realizes her crush on Otani. It doesn't help that all of her friends, usually Nobuko and Nakao, are constantly encouraging her on in her pursuit of him.
  • Dude Magnet: Even if she's not that admired for her beauty and is often regarded as no girlfriend material due to her being not "conventionally cute" because of her height and tomboyishness, she has Otani, Haruka and Kohori being attracted to her. Also, in the chapter where She Cleans Up Nicely, two guys talk about how they find her cute and one of them implies he wants to make a move on her after the photoshoot before Otani scares them off.
  • Effortless Amazonian Lift: Koizumi carries Otani in her arms after he failed to escape her.
  • Establishing Character Moment: Her first scene has her sleeping while standing and snoring. Then, when she suddenly wakes up, she yells "DAMN IT! My summon monsters have been annihilated!" and everybody laughs.
  • Everyone Can See It: Everyone in their friends' cirle and at school, know that she and Otani are perfect for each other.
  • Fiery Redhead: She has a really hot temper, making her really impulsive in some of her decisions.
  • Finishing Each Other's Sentences: With Otani. They are so good at this that they become a comedy sensation at their school, although it's very unintentional, and usually Played for Laughs.
  • Huge School Girl: Basically, half the premise is based on she being a girl more taller than the Japanese average.
  • Insecure Love Interest: To Otani. She thinks very highly of Otani's ex-girlfriend, Kanzaki, wondering why would he pick her over his ex-girlfriend. This is partly because of his hard and cold behavior around her and his inability to tell her how he feels.
  • Insult of Endearment: She calls Otani as "midget" and "shrimp", even after their Relationship Upgrade... although she does so in a considerably softer manner than before.
  • Ironic Name: Her last name is Koizumi and means "little spring" in Japanese, and she is taller than any other girl in her school. This is lampshaded in the first scene.
    "I've been tall ever since I was young. When we line up for morning assembly, I'm always at the end. But I happen to be named "Koizumi". Sorry, it's not "Oizumi" (big spring)."
  • Like an Old Married Couple: Her relationship with Otani is seen as such by the rest of their classmates, that they even lampshade it.
    Girl: Ahahaha, They're at it again~
    Guy : It'd be better if you two did a "married couple" comedy duo for the school festival.
    Koizumi: How embarrassing~ What "married couple" it's still too early!
    Otani: *smack* DON'T GET INVOLVED TOO!
    Koizumi: ACK!
    Nakano-Sensei: ''Aah...'' We don't have any time left, so we'll just let the married couple class representatives be the committee.
  • The Matchmaker: When she was trying to hook up Otani with Chiharu. She ended up developing a Matchmaker Crush on Otani.
  • One Head Taller: She is taller than Otani by a head.
  • "The Reason You Suck" Speech: Risa likes to hand these out after punching people to get them to calm down and think more rationally. She has done this to Otani and Mimi.
    Risa: [Risa punched Otani.] AHOU! It doesn't matter if you're tall or short! You're a man as long as you have a *beep*!!.
    Otani: Girls shouldn't use such indecent words!
    Risa: Just shut up, WILL YOU!? PEOPLE HAVE BEEN CALLING YOU SHORT FOR ETERNITY ALREADY! WHAT’S SO EMBARRASING ABOUT BEING CALLED SHORT BY A SINGLE GIRL!? If you're going to be bothered by such trivial matters... Beat ... Then you don't even have the right to like anyone! LOSER!

Atsushi Otani
Voiced by: Takahiro Sakurai (Drama CD), Akira Nagata

Otani is a really short guy, standing only 157 cm by 12th grade. He has a small stature but he is a bit muscular due to his constant basketball training. He has orangey brown hair and brown eyes.

Otani can be tough and rude on the outside, trying to look more manly. At heart, however is kind, silly, naive, oblivious, funny and a good friend. Like Risa, he likes Umibozu, water parks, games and the two tend to do things others wouldn't (like riding a rickshaw). Also, he displays a happy and care-free attitude,much like his girlfriend.

He is quite popular with girls even though he is completely oblivious to Risa's, Seiko's and Mimi's feelings towards him.

By the end of the series he follows his dream to become an elementary school teacher,stating he has always liked kids to the point in having some 10-years old as his basketball friends.

  • Green-Eyed Epiphany: Otani has never been able to see Risa as anything other than a friend...until she's suddenly swooning over Maity-sensei.
    Otani: You're always saying "Maity this, Maity that"!! That's why I'm so annoyed!!
    Risa: ...Why should you be annoyed?
    Otani: How should I know? Annoying things will, of course, annoy me!! Don't ever mention his name again!!
    • Purposefully invoked by Maity-sensei via his "magic" in order to make Risa happy.
  • Green-Eyed Monster: He easily gets jealous (such as when Maity offered Risa to take her home) even though, deep down, he knows he doesn't have to worry since Risa is always going to be in love with him.
    • He became insanely jealous when he saw Risa with Kohori. He even told Risa that he'd punch Kohori in the face if Risa was with him again.
    • Oh, and let's not forget the chapter from the manga's volume 12 where Risa had to model with Mimi (and as a result, ended up getting absolutely dolled up) and some guys comment on how they find her cute and one of them implies that he wants to make a move on her. He's not amused by their comments and even makes an "angry beast" face at them to scare them off!
  • Hair-Trigger Temper: Has a fuse as short as his height.
  • Has a Type: Otani likes short, cute, and helpless girls, and he seems to think that they need to be feminine and a bit shy. Ironically, he ends up falling in love with a temperamental Huge School Girl, who isn't seen as very feminine by her peers.
  • Heroes Want Redheads: Although Otani didn't fall for her at first, Koizumi is definitely a Fiery Redhead, just like him.
  • Insult of Endearment: With Koizumi. He calls her “amazon” and “totem pole”, though after the Relationship Upgrade , he still occasionally call her this, though in a considerably softer manner than before.
  • It's All About Me: Otani is often arrogant and holds a high opinion of himself.
  • Jerk with a Heart of Gold: He acts as a jerk, but he definitely cares for his friends, especially Koizumi... even though most of the times, he has a lot of moments where he is more of a jerk with her, due to his tsundere nature.
  • Keet: His usual state. Small? Check. Cute? check. Colorful? check. Energetic? check, check and check.
  • Like an Old Married Couple: With Koizumi.
    Girl: Ahahaha, They're at it again~
    Guy : It'd be better if you two did a "married couple" comedy duo for the school festival.
    Risa: How embarrassing~ What 'married couple' it's still to early!
    Otani: *smack* DON'T YOU GET INVOLVED TOO!
    Risa: ACK!
    Nakano-Sensei: ''Aah...'' We don't have any time left so we'll just let the married couple class representatives be the committee.
  • Tiny Guy, Huge Girl: Tiny Guy to Koizumi's Huge Girl. Tiny Guy to Koizumi's Huge Girl. He is a guy with a height below most average guys and she is a girl who’s taller than average. Do the math!
  • Tsundere: A rare male example of Type A with heavy emphasis on the "tsun" part. Otani is often showing the "tough" kind of love, rarely expressing directly his feelings for Koizumi. His pet name for her could be considered "idiot" or "stupid" since he always calls her that way, even when blushing.
  • Unrequited Love Switcheroo: With Koizumi. Played with. Risa falls in love with Otani, but Otani rejected her because he can’t see her like “more than a friend” (maybe because she’s taller than him too). Finally Risa gives up with Otani and she have a fangirl crush on Maity-sensei… Otani gets unwittingly jealous of Maity and finally realizes about his feelings for Risa in a Green-Eyed Epiphany (invoked for Maity-sama.)
  • Vitriolic Best Buds: With Koizumi. After they make a "truce" about hook up each other with their love interests (and fail) and after their deal about who gets a boyfriend/girlfriend first, they spend more time together and becomes close friends (they still fight, of course.)
    • Nakao mock Otani quite often too,and Otani yells at him when he does or when he say something (he considers) stupid.
    • With Yoshi in the manga. Otani gets angry about him because he's a jerk,but he is his friend anyways.
    Otani punches Yoshi.
    Yoshi: That hurt!
    Otani: No matter what you say, you are annoying! You are just trying to act cool!
    Yoshi [punches Otani]: I'm not really freaking trying to act cool!
    Otani: If that's how it is, it's really not cool at all!
    Yoshi : Shut up,tiny! I can't be friends with someone so tiny!
    Yoshi : It's like you're the one who is tiny! What should I do since we don't have a relationship?
    Otani: We do have a friendship! YOU ARE MY FRIEND!
  • Will They or Won't They?: Will the guy with a height below most average guys (Otani) and the girl who's taller than average (Risa) finally get together? Yes, They Do.

    Supporting Cast 

Nobuko Ishihara

  • Beta Couple: With Nakao. They were the only couple of Koizumi and Otani's circle of friends (before Chiharu and Suzuki hooked up), and they tend to act very lovey-dovey as newlyweds around each other.
  • Cool Big Sis: She is this to everyone, but especially Koizumi. This is evident when she's crying and looking to Koizumi for comfort.
  • Heterosexual Life-Partners: Nobu is Koizumi's best friend since they both started high school. She is always there when she needs help.
  • Shipper on Deck: She ships Koizumi/Otani so hard, that seeing Koizumi with another boy irritates her at no end.

Heikichi Nakao

Voiced by: Kenjiro Tsuda (Drama CD), Yasuhiko Tokuyama (anime)

  • Beta Couple: With Nobuko. They almost have as much screen-time as Risa and Otani.
  • Break Her Heart To Save Her: He tries to act like a womanizing jerk so that Nobu wouldn't feel guilty about leaving him. It didn't work.
  • Sensitive Guy and Manly Man: The Sensitive Guy to Otani's Manly Man
  • Shipper on Deck: Wanted Risa and Otani to get together.
  • Sickeningly Sweethearts: With Nobu. They still have their issues, though.
  • Stepford Smiler: In the episode "Premonition of Separation?! Risa and Ōtani Walk Separate Paths". He pretended to be happy for Nobu, but he was really sad to think of her going.
  • Supreme Chef: He reveals that will take care of the Japanese sweet shop of his father.

Chiharu Koyama

  • Beware the Nice Ones: Suzuki fails to get into the same college as (sweet, meek, quiet) Chiharu, and seriously considers breaking up with her because he feels insufficient as a boyfriend. When she finds out, she picks up a desk and throws it, just barely missing him. She remains angry enough for a while to involuntarily tear magazines in half whenever she remembers it, too.

Ryoji Suzuki

Voiced by: Masaya Onosaka (Drama CD), Kenjiro Tsuda (anime)

  • Cannot Spit It Out: In the manga, he didn't have the courage to tell Chiharu how he felt for her. That is until Risa intervened.
  • Only Sane Man: He may not be as hyperactive as the others, but he's not oblivious to their erratic nature.
  • The Quiet One: He is the most quiet compared to anyone in the anime and manga.

Haruka Fukagawa

Voiced by: Ryotaro Okiayu (Drama CD), Masaya Onosaka (anime)

  • But Not Too Foreign: Although Haruka was born in Japan, his grandmother is actually from England.
  • Childhood Friend: He has been friends with Risa since they were in Elementary School.
  • Crazy Jealous Guy: Since he admires and likes Risa more than just a friend, he openly clings to her and often expresses an intense hatred towards Otani. When he hears that Otani rejected her feelings (the first time), he practically flips out about the news.
  • Gender-Blender Name: Since "Haruka" is mostly a feminine name, many of his classmates bullied him when he was a kid.
  • Lady Killer In Love: Sorta. He's a massive The Casanova, but insists he's only "preparing" himself to date Koizumi via dating all of these girls. She obviously ain't pleased.
  • Masculine Girl, Feminine Boy: During their childhood, Haruka was the Feminine Boy to Risa's Masculine Girl. He used to be very sensitive and quiet (and he was mostly friends with girls, too), while Risa was tougher and louder.
  • No Sense of Personal Space: Upon reuniting with Risa, he gives her one or two bear hugs.

Seiko Kotobuki

Voiced by: Fujiko Takimoto

A girl who Otani briefly dated. He broke up after he found out Seiko is transgender.
  • Dumb Blonde: Isn't really that smart.
  • Genki Girl: Seiko is very, very cheerful and upbeat towards everything, especially in front of her friends. In the manga, it's shown that she only gets depressed one time when she realized that her voice was breaking, although she later finds out that it was just a side-effect of the flu.
  • Meaningful Rename: Seiko's original name as a male was "Seishirou", but she later changes it as Seiko, as soon as she was embracing her identity as a woman.
  • Transsexual: She's biologically male, yet she identifies as a female and says God put her in the wrong body.
  • Unsettling Gender Reveal: Otani has the surprise of his life when he finds out that the cute girl who was going after him was actually transgender. He was shocked.

    Minor Characters 

Mayu Kanzaki

Voiced by: Yuki Matsuoka

  • Cute Sports Club Manager: She seems to like basketball players, both short and tall.
  • First Love: For Otani. This worries and surprises Risa upon discovery.
  • Huge Guy, Tiny Girl: With her boyfriend. He's about 6'4'' of tall and is nicknamed "The Junior High Super Giant".


Voiced by: Hisao Egawa

A famous rapper whom Risa and Otani love.
  • Face of a Thug: His wife even says that, despite his angry appearance, he's actually a very kind person.
  • High School Sweethearts: With his wife. They had a setback when he confessed, but they eventually started dating.
  • No Name Given: "Umibouzu" is only an artistic name that he uses. His real name is never mentioned in the series.
  • Teen Idol: A famous rapper that both Koizumi and Otani like.

Kuniumi Maitake

Voiced by: Junichi Suwabe

A student teacher who teaches Koizumi and Otani's senior class.
  • Chick Magnet: A majority of his female students, including Koizumi, consider that he is one of the most handsome teachers at their school. They even started a fanclub, immediately after he is introduced to their class.
  • Cool Teacher: He does his best to help his students, even with the silliest situations.
  • Expy: To Koizumi, he looks and sounds like Cain, a character from a otome game she is playing.
  • Hot Teacher: He is one of the most handsome teachers at Maido Academy, many female students fall easily for him (too bad he is engaged!)... and he is even pictured as the trope's page image!

Kiyoji Nakano

Voiced by: Masashi Hirose

Risa and Otani's homeroom teacher. He was the one initiated the "All Hanshin-Kyojin" name calling for Risa and Otani.
  • Dodgy Toupee: In the movie, he tries on several wigs. Some of them are fairly obvious.
  • The Gadfly: He takes delight in messing with his students, primarily Risa and Otani.
  • Shipper on Deck: He paired Risa and Otani together quite frequently.

Mimi Yoshioka

Voiced by: Kae Araki

A girl in Otani's neighborhood who has a crush on him.
  • Tiny Guy, Huge Girl: She's about the same height as Risa. This is the reason why she gets upset with her relationship with Otani.
  • Tomboy and Girly Girl: When compared to Risa, she's almost as girly as Nobu.
  • School Idol: A famous model.
  • Unlucky Childhood Friend: To Otani. She lives right next to him and has loved him for years. Unfortunately, Otani never noticed until she told him.
  • Yandere: Tried to stab Risa's hand and threatened her if she stayed with Otani.

Kazuki Kohori

A young high school boy who works at Ikobe with Risa. He quickly develops feelings for her, which hurts Risa's relationship with Otani.