They are all Rentaro's girlfriends, close to each other, and not jealous.
Hanazono Hakari - Gender: Female
Age: 15 (10th Grade)
Pervert, Rentaro's 1st girlfriend who loves him, Hahari's daughter, Karane's friend.
Comedy Role 1.
Inda Karane - Gender: Female
Age: 15 (10th Grade)
Tsundere with incredible physical strength.
Rentaro's 2nd girlfriend who loves him, Hakari's friend.
Yoshimoto Shizuka - Gender: Female
Age: 15 (10th Grade)
Quiet and timid.
Rentaro's 3rd girlfriend.
Cute + The weakest (but gets lots of love).
Library Club.
Eiai Nano - Gender: Female
Age: 15 (10th Grade)
Efficiency-obsessed, top of the school.
Rentaro's 4th girlfriend.
Calls out anything inefficient as "inefficient."
Often looks after Shizuka.
Yakuzen Kusuri - Gender: Female
Age: 18 (12th Grade)
Chemistry Club, makes lots of weird drugs (causes chaos with them).
Rentaro's 5th girlfriend.
Has an 8-year-old body due to an immortality drug.
Ends sentences with "~nanoda."
Comedy Role 2.
Hanazono Hahari - Gender: Female
Age: 29
Rentaro's 6th girlfriend.
School Chairwoman, wealthy, Hakari's mother, pervert.
Gets nosebleeds when seeing cute things, silly and close to everyone.
Comedy Role 3.
Haraga Kurumi - Gender: Female
Age: 14 (9th Grade)
Rentaro's 7th girlfriend.
Glutton, fierce when hungry, tsundere when full.
Fast metabolism.
Gluttony Role.
Meido Mei - Gender: Female
Age: 19
Rentaro's 8th girlfriend.
Hahari's maid, serves Hahari, has rainbow eyes but keeps them closed, calm.
Sutou Iku - Gender: Female
Age: 15 (10th Grade)
Rentaro's 9th girlfriend.
Masochist.
Baseball Club.
Boyish.
Comedy Role 4.
Utsukushisugi Mimimi - Gender: Female
Age: 16 (11th Grade)
Rentaro's 10th girlfriend.
Narcissist, delivers newspapers, maintains herself, beautiful inside and out.
Kakure Meme - Gender: Female
Age: 15 (10th Grade)
Rentaro's 11th girlfriend.
Timid + Low self-esteem.
Covers her face with her bangs.
Can use "Misdirection" to move quickly by drawing attention to a doll.
Iin Chiyo - Gender: Female
Age: 12 (7th Grade)
Rentaro's 12th girlfriend.
Rentaro's cousin, says "Ugh" while trying to correct things, model student.
Yamato Nadeshiko - Gender: Female
Age: 24
Rentaro's 13th girlfriend.
Uses terrible English and grammar, loves America, loves freedom, former eldest daughter of the Yamato family (now disowned), Japanese teacher.
Comedy Role 5.
Yasashiki Yamame - Gender: Female
Age: 15 (10th Grade)
Rentaro's 14th girlfriend.
Gardening Club, cherishes life and is very considerate, walks on stilts, 2m tall.
Has a butterfly on her head.
Ends sentences with "~dappe."
Momi Momiji - Gender: Female
Age: 14 (9th Grade)
Rentaro's 15th girlfriend.
Has a touch fetish, very skilled at giving massages.
Yakuzen Yaku - Gender: Female
Age: 89
Rentaro's 16th girlfriend.
Yakuzen Kusuri's grandmother.
Has an 8-year-old body due to an immortality drug.
Doesn't know much about modern trends.
Torotoro Kishika - Gender: Female
Age: 17 (12th Grade)
Rentaro's 17th girlfriend.
Kendo Club Captain, regresses to an infant state when treated like a baby.
