Grisaia no Kajitsu

Synopsis

Yumiko Sakaki makes continued attempts to cut Yuuji but to her frustration he avoids them all. Later that day he encounters Makina, who is quite shy, but after he helps her catch a crayfish she warms up to him and decides to call him Onii-chan. He then visits the principal's office for advice in resolving Sakaki's continued hostility toward him. He finds out that all of the other students have "special circumstances" for enrolling in the school. Yuuji's guardian and work boss, JB comes to pay him a visit at school which stirs his classmates' curiosity, especially Amane who wants to know whether Yuuji has a girlfriend or not. Later that evening in the dorm, he is ambushed by Yumiko once again and responds by knocking the knife from her hand. He then tells her that he is not her enemy and intends to be her friend. From that day onwards, Yumiko attitude toward him softens. The end credit montage shows how each of the other students arrived at the Academy and how they became friends. (Source: Wikipedia)