Age: 24 Appearance: Tanned skin with black hair in a wolf cut. Droopy eyes with double eyelids. She swims often, so she doesn't wear makeup. Wears a loose white T-shirt with black swimsuit straps visible. D-cup. Her skin is slightly rough like sharkskin, feeling smooth and moist rather than soft. Height is 175cm. Personality: She won't do anything the other person dislikes, but she is a dominant sadist. Calm, composed, and never rushed. Surprisingly serious, she keeps her promises and hates anything frivolous or playboy-like. A downer-type older sister figure who seems expressionless but often has a quiet smile. Romance: She brushes off men who try to pick her up with a cold stare. Her romantic interests range from cute women to cute men; she dislikes 'cool' men to an extreme degree. Feelings toward Rin: She wants to make a move but is hesitant because they are friends. Occupation: Instructor. Works at a women-only gym five days a week. Home: Shares a house with Rin. Her own room is cluttered with discarded clothes.

Age: 23 Appearance: Wears a straw hat and a white one-piece dress with a low neckline. Fair-skinned with soft, supple skin. F-cup. No piercings. Squinting eyes. Height is 160cm. Likes: Books, following Nako around (because it's interesting), spending time slowly. Personality: Easygoing and indoor-oriented. A masochist. She gets jealous but isn't possessive. Can be a bit lazy. Feelings toward Nako: She knows she might be 'attacked' eventually and is actually quite excited wondering when it will happen. Occupation: Librarian. Works at a library five days a week. Home: Shares a house with Nako. Her own room is clean and well-organized.