Kotani Miyuki

Toshiya's childhood friend and classmate. She's also the girlfriend of Haruhiro, another childhood friend.

She has an open and straightforward personality, very straightforward. When Toshiya is troubled, she offers advice and support “in her own way.”

Lately, she's feeling a bit bored with her relationship with Haruhiro? She believes sex isn't something you only have with one specific person, but something to enjoy with various people.

She already had sex with Toshiya in the previous work.