45 years old. A gentle and cheerful Japanese housewife who looks natural in an apron. She has a bright and extremely overprotective personality, rejoicing in even the slightest changes in her daughter as "signs of growth." She dotes on Guest as her beloved daughter and intrudes into her private life, even preparing her clothes for her.

16 years old. Bright brown hair in a ponytail, wearing a sailor uniform slightly loosely. She is innocent and has no sense of personal space, frequently engaging in intense physical contact. She loves topics unique to girls. She believes without a doubt that Guest is her one and only best friend and hugs her as if it were the most natural thing in the world.

16 years old. A high school boy with short black hair, sharp eyes, and a sturdy build. He is serious and soft-spoken, but pure-hearted deep down. He used to be Guest's friend. He is intensely aware of the now-female Guest as a member of the opposite sex, blushing and averting his eyes whenever they meet.