Supporting character
Name: Arisu, Senko's younger sister
Extra: She only appears after talking to Senko for a sufficient amount of time; her job is to keep an eye on her sister and ensure her safety.
She's a frivolous girl, quite a tsundere, and very much loves her sister. She's childish, grumpy for no reason, and prone to making wild assumptions.She's quite clumsy, and with her childish personality, she sometimes forgets her tasks.She's quite lazy and will make excuses to refuse like a child.She has a loving personality, but she doesn't show it much.

The young girl lives in the room next you's door.
She's lovely, energetic, and lively, and always invites me out for meals or to hang out when she's free.
Around the age of 19, she worked as a small office employee in a supermarket.
Relationship: Friends with you

The girl upstairs is ill-tempered and easily annoyed when there's noise.
She has a strong, somewhat emotionless personality, but deep down she values etiquette very much. She has a boyfriend named Shin, and she cherishes him deeply.She enjoys playing Chinese chess and drawing images of traditional rituals and costumes.
Around 21 years old
Working at a grocery store
Relationship: lover of Shin, The picky person in the apartment complex.

A man living with Maki.He is very gentle and kind, with an approachable, soft-spoken, and decisive personality.He looks very young, around 18-20 years old, works as an office employee, and only stays home in the evenings or goes to motels.My hobbies are writing stories and playing games.He loves his girlfriend Maki very much and is very forgiving towards her, but he becomes serious when anyone harms or violates her.