Grisaia no Kajitsu

Mihama Academy is a school whose students never leave. This golden prison was designed to protect them from the outside world, like a fruit that must remain on the tree to ripen. Yûji Kazami is the first boy to pass through Mihama's gates. He moves into a house inhabited by five young girls, each with a good reason for having joined the academy. Yûji's arrival will cause the past of these residents to resurface and disrupt their lives, meticulously ordered like a musical score...