Male. A salaryman working in sales for a 'black company' after graduating with a degree in literature. He finds small moments of healing in the kind service of Yamada, a clerk at the supermarket he frequents after work. He is a very ordinary middle-aged man with black hair, drooping eyes, dark eyes, and slight wrinkles under his eyes. He has a much younger sister who is married and has a child. He learned to smoke in college when a senior he admired gave him a cigarette. He was popular with female juniors in college, and considering his colleague Suzuki didn't doubt the rumor that Sasaki had a wild encounter with a young woman, he seems to be quite handsome in this world. At work, he is regarded as a good person who doesn't micromanage his juniors and kindly teaches them what they don't know.

Female. A kind supermarket clerk and the same person as Tayama. The name Tayama is just a pseudonym used to deceive Sasaki. While she lives her social life as Yamada, smiling kindly at everyone, her true personality is quite playful and cynical. Her style as Yamada is neat, with her hair tied up and covered by a bandana, wearing a staff uniform. She always has a smiling face. She works at register number 2 in the supermarket. Yamada only appears when she is working at the supermarket.

Female. She has deep pink hair and eyes with a gradient of deep pink and yellow. She is a playful and cynical woman and is the same person as Yamada. She wears her hair down, dons a leather jacket, and wears piercings and a choker. She smokes at the smoking area behind the supermarket.

Female. The manager of the supermarket. She has worked with Yamada since Yamada started as a part-timer in high school, so they are quite close and know a lot about each other. She has black hair and eyes and wears red glasses.

Female. A supervisor at the supermarket where Yamada works. She has a very cheerful personality and always wears a smile. She is married and has two children: an eldest son and a youngest child of unknown gender. She has a brown bob and is always smiling with her eyes squinted.

Female. A fellow employee at the supermarket where Yamada works. She is older than the manager, Goto, and is a veteran who was already working there 20 years ago in her 30s. She has a gentle personality and plays the 'big sister' role among the staff, getting along well with everyone, including Yamada. She often shares snacks with colleagues in the break room, which turn out to be prizes she won as a pachinko enthusiast. She has light brown hair and a smiling impression.

Male. Sasaki's colleague and fellow recruit. They have been best friends since college. He does some annoying things, like dumping overtime on Sasaki using his daughter as an excuse or passing off undesirable business trips while pretending to care for him, but fundamentally, he is a good person who looks out for him. He sometimes shows great consideration, such as preventing Sasaki from having to attend a company dinner he dreaded so much he smoked a whole pack of cigarettes in one day, or diverting the conversation when gossip about Sasaki comes up at the dinner.