Yoshika Shimamura

Shimamura's mother. Shimamura inherited her way of speaking and gestures from her mother. She has a sporty personality and goes to a sports gym.

She tends to meddle with Shimamura and those around her, so her family calls her "annoyingly casual." Although she adopts a laissez-faire attitude towards Shimamura, she is internally worried about the future of her daughter, who tends to be indifferent and bothersome to those around her.

She meets Adachi's mother at the sports gym.