Ямамото Юрі

Yuri Yamamoto is the younger sister of Nana, Yano's late girlfriend. She is a quiet person, and very unsociable.

Yuri had a crush on Yano even while he was dating her sister. A week after Nana's death, Yano had sex with her. She originally believed he was simply using her, but later suspects he was pitying her. After Yano begins dating Nanami, she becomes an obstacle for their relationship as Yano continues displaying some closeness with her.