Shiroi Bara no Otome

Yoshiko Hamaguchi, a third-year student at a girls' missionary school, experiences a monotonous routine surrounded by idle chatter and unexciting social interactions. During one of her solitary moments, she encounters Tsukiko Takamiya, the school's prominent figure, in the abandoned auditorium. The following day, Tsukiko approaches Yoshiko with a request to become friends, though her intentions appear to involve more than simple companionship.