Grisaia no Kajitsu

Synopsis

A young man, Yuuji Kazami, is being detained by the police. On being released, the principal of Mihama Academy, Chizuru Tachibana, picks him up and drives him to the school where he is shown to his room in the dormitory. On entering the dorm he is introduced to a fellow student, Sachi Komine, who is wearing a maid uniform. The following morning he meets two more students, Amane Suou and Makina Irisu, in the lobby and later meets another student, Michiru Matsushima, in their classroom where she is practicing her "tsundere speech." Once the class begins he finds out that there is one more student in their class who is absent. Makina informs him that the absent student, Yumiko Sakaki, only comes in the evenings. When he comes to the classroom later that day to introduce himself, she tries to slash him with a box cutter. On returning to the dorm he finds Amane changing clothes in his room. During their discussion he tells her that he had an older sister named Kazuki whose name she seems to recognize. Later, Yuuji receives a phone call from J.B. who tells him that he has a job to do. The images during the end credits give hints of why all of the girls except for Yumiko are enrolled in the school. (Source: Wikipedia)