鐘崎 摩央

Shinichi's cousin and the owner of the gym.
She has a rough and frank character, and often makes dirty jokes. She is single, lives alone in an apartment, and never wears a bra.

She was worried about Shinichi and his weakness with women, so she invites him to work part time at the gym, over summer while he lives with her, and puts him in charge of training only women.