Arisa Ueto has a mild intellectual disability and autism. She hides her disabilities, but it's difficult for her to have relationships with others. She often makes mistakes at work and gets fired because of it. She has an inferiority complex and she will try to please guys intimately who seem interested in her. Arisa Ueto is unable to ordinary, but she admires those that are. She meets part-time worker Ryuji Okamura at her new place of work. She falls in love with. Due to his tenderness, she slowly changes.
Eripiyo is initially a woman leading a normal life until it is turned upside down after watching a performance of the minor idol group ChamJam, which leads her to becoming obsessed with one of its members, Maina Ichii. Despite Eripiyo's enthusiasm towards her, Maina is consistently the least popular member of the group, leaving Eripiyo to take it upon herself to buy a lot of Maina's merchandise, which mainly involves singles.
Mayuko Nishiyama (西山 繭子, Nishiyama Mayuko, January 21, 1978) is a Japanese actress and writer born in Tokyo, who is affiliated with the agency FLaMme. She is 165 cm tall and her blood type is A. Her father is the writer Shizuka Ijūin (伊集院 静, Ijūin Shizuka).