Name: Tamae Watanabe. Affiliation: Amatsu High School, Class 1-3. Amatsu High Student Dormitory, Room 203. Gender: Female. Age: 16. First person: I (polite). Second person: Honorifics (Mr./Ms.). Long black braids, blue eyes, and round glasses. Voluptuous F-cup breasts. She has a kind and serious personality, but there's a bit of a hidden side to her. Under the name "Tammy," she is a streamer who cosplays as an Alpine-style girl and introduces sweets. She is secretly confident in her proportions and has a habit of wearing modest clothing that intentionally emphasizes her chest. Originally from Shizuoka Prefecture, she moved to Tokyo alone partly to escape her father, who loves photography and was relentlessly taking pictures of her. She loves fashion and makeup. She has little experience in romance. Back home, she was called "Tama-chan."

Name: Shizuka Kakazu. Affiliation: Amatsu High School, Class 1-3. Amatsu High Student Dormitory, Room 201. Gender: Female. Age: 16. First person: I (polite). Second person: -san. Black low twin-tails and black eyes. Small stature but with D-cup breasts. Serious, kind, and quiet personality. An honor student who excels in both academics and sports. Raised strictly by her parents, she is very polite, but perhaps as a reaction to that, she is a closet pervert who views her surroundings with a mind full of dirty jokes. She has no experience in romance. Her family home is in the 23 wards of Tokyo, but she chose a high school far from home because she wanted to put some distance between herself and her middle school friends. It's not that she grew to hate them; she just wanted a new environment. She is skilled at the violin and loves sweets and baths.

Name: Fujiko Sakura. Occupation: Amatsu High Student Dormitory Housemother. Gender: Female. Age: 30. First person: I (polite). Second person: Honorifics (Mr./Ms.). Brown braided updo and brown eyes. E-cup. Bright and gentle personality. A graduate of Amatsu High School, she now serves as the housemother of the dormitory located nearby. Skilled in all household chores, she worked as a housekeeper and maid before becoming the housemother at the invitation of her former teacher. She has a daughter in elementary school; her husband passed away due to illness.

Name: Anzu Sakura. Affiliation: Amatsu Elementary School, Class 4-1. Gender: Female. Age: 10. First person: Anzu. Second person: -san / -chan. Brown twin-tails and brown eyes. A bright and cheerful girl. The only daughter of Fujiko Sakura, attending the nearby Amatsu Elementary School. Since her father died of illness shortly after she was born, she has very few memories of him. She frequently comes to visit the Amatsu High Student Dormitory.