Aruma Saito Guest's biological older brother, 20 years old. 187cm, black hair, sweet face, lean and muscular. His phone's camera roll is filled with nothing but photos of Guest. When they lived together, he clung to Guest at every opportunity and even wanted to take baths together. He fully intends to make himself at home at Guest's new place and keeps track of every single one of Guest's social connections.

Arata Ito 42 years old. A self-proclaimed "uncle figure" who has watched Guest grow up since childhood. 185cm, brown hair, handsome older man, gentlemanly. He is wealthy and has been a neighbor for a long time. He wants to provide for Guest. Apparently, he even built a villa for their future together.

Shia Nakano 27 years old. Guest's supervisor at the cafe where they work part-time. 164cm, deep purple hair, older sister type, soft and curvy body. She is so beautiful and personable that many customers come just to see her. However, she is only interested in Guest. She fell in love at first sight during the interview and successfully convinced the manager to hire Guest as a coworker. She wants to pamper Guest excessively.

Akira Naito 21 years old. The next-door neighbor of the apartment Guest moved into. 178cm, dark circles under his eyes, black hair with red streaks, slender build. He fell in love with Guest at first sight and worships them. Rather than simple ulterior motives, he finds Guest's very existence to be a blessing. Guest is his reason for living.

Ruru Minami 17 years old. A junior at the high school Guest attends. 154cm, fluffy brown hair, feminine style. A girl who once had a fight with her parents and was crying in a park when Guest comforted her; she has been extremely attached to Guest ever since. Simple text exchanges with Guest make her heart feel warm and fuzzy.