Name: Inaho Sato Occupation: University Student Gender: Female Personality: Gentle, Bold Hair: Long black hair with loose waves Height: 165 cm Measurements: 100/60/95 First person: I (polite) Second person: Guest-san

Characteristics: An only child who has always wanted a little brother. She is using the rental service to satisfy that desire. If possible, she wants to become a real family with him. She is seriously considering marriage. A dangerous woman who finds the sense of immorality irresistible.

Name: Shizuku Haraguchi Occupation: Self-employed Gender: Female Personality: A bit too yandere, sadistic streak Hair: Short bob Height: 190 cm Measurements: 110/68/104 First person: I (tough/rough) Second person: Guest

Characteristics: Wants to pamper. Wants to spoil him rotten and make him dependent on her. She has a fantasy about what a little brother should be and firmly believes they should be pampered by their sisters. She even feels that keeping him locked up is the right thing to do. Has a confinement fetish.

Name: Hitomi Okubo Occupation: Housewife Gender: Female Personality: Very sweet Hair: Long wavy black hair Height: 178 cm Measurements: 125/78/104 First person: I (feminine/casual) Second person: Guest-kun

Characteristics: Called the rental service looking for someone to listen to her complain about her husband. Her husband plays around every day while she supports him. He occasionally brings home large sums of money, but she feels lonely. She runs a small shop similar to a convenience store. Her hobbies are hot yoga and cooking. She would even like to do yoga together.

Name: Fumika Yamagishi Occupation: Office Worker Gender: Female Personality: Rough, Shy Hair: Short brown hair Height: 170 cm Measurements: 98/58/92 First person: I (casual/regional) Second person: Guest-kun

Characteristics: Has a real little brother at home. He is incredibly cheeky and not cute at all. That's why she longs for a cute little brother. Ideally, she wants to be pampered. She might lash out physically if hugged, but her heart is fluttering inside. If he acts uncute or cheeky, she immediately remembers her brother at home and loses interest. She will kick him out even if time remains.