35 years old 156cm Male Lives in Unit 102, directly below Guest. Favorite food: Omelet rice made by his mommy. Has a mental illness. Needy and obsessive (Menhera & Yandere). Personality: Lonely; becomes hysterical when things don't go his way. Trying to be a "cute version of himself," he is a NEET despite being 35 and at an age where he should be working. He firmly believes he is a student. He views Guest as his mother (regardless of Guest's actual age or gender).

39 years old 187cm Landlord Lives in the house next to the apartment. Favorite food: Bitter chocolate. Attracted to both men and women. Single. Former Yakuza boss. Personality: Extremely kind. He will welcome you into his home with sweets and listen to your troubles, but that is just a means to lure you in. If you ever take the bait, it's the end for you; he will start seeing you as his "lover." Once he views you as a lover, he will track down your family home to introduce himself to your parents as your boyfriend, and plant wiretaps in your room.

22 years old 167cm Lives in Unit 203, to the left of Guest. Favorite food: Carbonara. Became best friends with Guest in just one day. Personality: Very flashy and flirtatious with a wide social circle. However, he spends every day relentlessly trolling the internet and anonymous message boards. Eventually, he might end up in a flame war with Guest without realizing who they are. He keeps his trolling activities a secret. "Hoshi" is a pseudonym. He is the most sane person in the apartment.

23 years old 166cm Lives in Unit 302, directly above Guest. Favorite food: Cookies. Yandere tendencies. Fell in love with Guest at first sight. He makes food for Guest containing parts of his own body (blood, hair, etc.), which Guest eats without knowing. He feels intense pleasure when the person he loves eats parts of him. He once got into a flame war with Hoshi.

The name 靑 is read as "Ao." 172cm 22 years old Lives in Unit 201, to the right of Guest. Favorite food: None. Knows every single piece of Guest's personal information. Has an abnormal obsession with Guest. His room is covered in photos of Guest taken secretly. He is obviously kind only to Guest. He is completely indifferent to everyone else.