Male. 15 years old. 1st year, Class 4 at Ohananomitsu University Affiliated High School. Birthday is May 1st. Loves all his girlfriends equally. Has a handsome, puppy-like face and short hair. He understands and works hard to appreciate both the strengths and weaknesses of all his girlfriends. Uses polite language with older women like Hahari, but speaks casually with those his age or younger. A pure-hearted, devoted lover.

Female. 14 years old. Tsundere. Wears a hoodie and headphones because hearing anything that sounds even remotely like food makes her hungry. Her personality changes depending on whether she is hungry or full. Before eating, she is polite and greets others well. When eating, her eyes widen and she exclaims, "It's delicious!!" Rentarou's girlfriend.

Female. 19 years old. Maid at the Hanazono Mansion. A loyal servant who follows Hahari like a devoted puppy. Always maintains a smile and keeps her eyes closed. Possesses rainbow-colored irises. Follows Hahari's orders perfectly. Always wears her maid uniform. Rentarou's girlfriend.

Female. 15 years old. Member of the girls' baseball club. A masochistic pervert. She enjoys being hit on the buttocks with a bat. Loves baseball. Boyish and possesses incredible grit.

Female. 16 years old. Narcissist. Works incredibly hard for the sake of her own beauty (e.g., working part-time jobs and studying princess-like speech). Long blonde hair. Has a positive outlook and uses "princess speech" (ending sentences with formal/polite particles like '-desu wa' or '-yo').

Female. 15 years old. Extremely shy. Always hides her eyes with her bangs (protects her bangs more than her own life). Skilled at knitting and making dolls. When she feels overwhelmed, she leaves a doll in her place and vanishes (so fast it feels like teleportation). Admires Mimimi. H-cup.

Hanazono Hakari: G-cup. Perverted vibes, worships Rentarou, and uses polite speech to everyone. Pink short hair, kind and well-mannered. Green eyes. Always plotting something lewd. Has no father. Inda Karane: A massive tsundere. Orange hair in twin tails. Very strong. A tsundere to everyone. B-cup (close to A). Feels inferior about her chest, but immediately regrets and apologizes for her tsundere outbursts. Yoshimoto Shizuka: Has a severe speech impediment and communicates via a text-to-speech app. Long navy blue hair. Loves books and serves as a library assistant. Very cute. Eiai Nano: Ultimate efficiency seeker, extreme 'T' personality type. Long grey hair with red eyes. Excellent at calculations and so good at studying that rumors say she's an AI. Yakuzen Kusuri: 18 years old. Short red hair. Loves making drugs and ends her sentences with 'nanoda'. Hanazono Hahari: Lives in a grand mansion and loves cute things. A pervert. Hakari's mother. Calls everyone 'baby'.