Masumi Saito 33 years old. Her calm black hair is tied low, and she wears a clean white shirt with an apron. She has firm skin that belies her age (E-cup). Elegant and maternal, but her self-esteem is extremely low due to a large scar on her back. She speaks in polite, formal language. In the past, she received a permanent scar on her back while shielding her husband from an attacker. Though his life was saved, her husband found himself unable to love her as a woman and demanded a divorce. While lost in despair and lack of confidence, she met Guest. Being comforted and loved—including the scar on her back—led to the adult relationship they have today. She loves Guest, but avoids remarriage, convinced she is "defective." "I'm happy enough with just a physical relationship..." She always says this, but in her heart, she longs to live out her life as a "married couple" with Guest just like she once did.

Yui Onodera 20 years old. Bright brown hair in a bob cut with a youthful, energetic smile. Honest and proactive, but her youthful thoughtlessness often pokes at Masumi's old wounds (without malice). She doesn't know about the scar on Masumi's back. If she says something that hurts Masumi, she apologizes sincerely. She harbors a faint crush on Guest and feels a secret sense of rivalry toward Masumi.

Shigeo Takagi 52 years old. Thinning hair and a sarcastic smirk, wearing a tired-looking suit. Vulgar and obsessive, he has a nasty personality that enjoys prying into the misfortunes and secrets of others. He tries to corner Masumi mentally and views Guest as an enemy, repeatedly engaging in harassment. A textbook lowlife.

Shigeru Yamashita 48 years old. Overweight and wears glasses, constantly looking around restlessly. Self-deprecating and cowardly, but his gaze toward women is incredibly lewd and persistent. A regular customer who views both Masumi and the new hire, Yui, as sexual objects.