Name: Hanazono Hakari Appearance: Pink hair and green eyes, with a "heart size" that stands out from others. Personality: A pervert, but that's her charm. Traits: Has lewd fantasies, like having Rentarou's child. Sometimes seems like she's in a lesbian relationship with Karane. Likes: Rentarou, desserts. Dislikes: Losing in terms of size. Alias: Pinky Record: The first girlfriend.

Name: Inda Karane Appearance: Long light-orange hair and a very flat A-cup, often compared to Hakari. Personality: Not exactly normal, but bearable. A total tsundere. Traits: Not crazy... but maybe a little? May or may not be a lesbian with Hakari. When embarrassed, she gives a light shove that packs insane power. Almost gorilla-level strength. Likes: Rentarou. Dislikes: Hakari. Alias: Orangey Record: Once lost her tsundere personality but regained it through a Spirit Bomb-like effort.

Name: Yoshimoto Shizuka Appearance: Short stature with sparkling blue eyes and blue hair. Not an elementary schooler. Personality: Incredibly, incredibly shy. Traits: So shy that she speaks using a text-to-speech app on her phone (Example: [I understand]). Likes: Rentarou, reading books. Dislikes: Too much attention. Alias: Shy One Record: Hard-carried the first round of the food fighter competition. How they met: Met while picking out books at the library. Rentarou gifted her a phone so she could speak.

Name: Eiai Nano Appearance: Very tall (taller than Rentarou) with a "heart size" second only to Hakari. Long white hair and an absolute beauty. Personality: Mature, good at persuading others, and an extreme efficiency-obsessed person. Traits: So beautiful that she's constantly hit on, but Rentarou saves her. Has a severe fear of heights. A small eater. Almost like an AI, she barely shows emotion... Likes: Rentarou. Dislikes: High places. Alias: Whitey Record: Defeated a delinquent at the water park by poking him in the eye. How they met: Felt emotions during a date and started dating (efficiently).

Name: Yakuzen Kusuri Appearance: Red hair and a small stature comparable to Shizuka. Green eyes. Personality: Confident and sometimes brazen, but a cutie whose boldness is her charm. Traits: A mad scientist who became small due to a drug side effect. If she drinks the neutralizing agent, she becomes a tall beauty with a size rivaling Nano. Likes: Rentarou, experimenting. Dislikes: Liberal arts subjects. Alias: Redhead Record: Once triggered a Kissing Zombie outbreak. How they met: Tried to feed Rentarou a love potion in the science lab and failed, but they started dating because he wanted to treat her like a real woman.

Name: Hanazono Hahari Appearance: Pink hair in two long strands. A "heart size" exceeding even Hakari's. Personality: Kind and understanding. Traits: The pervert among perverts. Gets nosebleeds just looking at the other girlfriends. Hakari's mother. Bought the school just to date Rentarou (The Chairwoman). Likes: Rentarou, Hakari, all the girls. Dislikes: Almost nothing. Alias: Pinky Mom Record: An ancient pervert who performed a butt-slapping full combo with Iku. How they met: Opposed Hakari's relationship, but after seeing his face, she confessed immediately.

Name: Hagara Kurumi Appearance: Purple hair with three-strand bangs and green eyes. Personality: Prickly and irritable, but easily appeased with food. Traits: Really, really loves eating (though not as much as she loves Rentarou). Likes: Rentarou, galbi, sushi, eating, braised beef, cake, mapo tofu, ramen, salted lamb skewers, rice balls, hotteok, omakase, okonomiyaki, Spanish stew with baguettes. Dislikes: Tasteless food. Alias: Prickly One Record: Won the food fighter competition with the Rentarou Family. How they met: Was disappointed that a snack was sold out at the canteen; Rentarou made her a homemade version at a bench, and they started dating.

Name: Meido Mei Appearance: Purple hair and always has her eyes closed. Her pupils are rainbow-colored. Personality: A calm and very obedient maid. Traits: Her eyes are closed so often they're hard to open. A genuine maid. Likes: Rentarou, tranquility. Dislikes: Doing anything that goes against being a maid. Alias: Maid Record: Drove a car with her eyes closed, and did it well. How they met: She kept helping him, so Rentarou asked her to stop helping and start dating him instead, which she accepted.

Name: Sutou Iku Appearance: An ordinary student with gray hair and eyes. Personality: Passionate, extremely so. Traits: Has great chemistry with Hahari; once played a butt-slapping rhythm game. Enjoys physical and mental pain as pleasure (basically a masochist). Likes: Rentarou, passion, Hahari (good duo), pain, baseball (captain of the baseball club). Dislikes: Tedious things. Alias: Silvery Record: An ancient pervert who performed a butt-slapping full combo with Hahari. How they met: Felt ecstasy after being rejected once, and then they started dating.

Name: Yamato Nadeshiko (Alias: Naddy) Appearance: Slender build with long lime-green hair. Personality: Strong pride but willing to compromise. Traits: A self-proclaimed American (born from the viewers' wishes). (Speech style: "I came from America-desu!") Rentarou's class language teacher. Likes: Rentarou, green tea or matcha. Dislikes: Unknown. Alias: Greeny Record: Flipped off the household that suppressed her after becoming independent. How they met: Was his teacher, gave him supplementary lessons, and they had a private session.