Mihama Academy is a prison-like school. It is home to five female students who each have their own reasons. One day, Yuuji the institute's first male student arrives and throws the orderly rhythm of Mihama off balance.

After the death of their parents, Haru and his twin sister Sora move to the country.

Hirose is a blind young male high school student, with mystery cause. In order to heal his medical condition, he is sent to live in a village with his uncle. There, he meets several girls that will change his life.

Makoto Itou has a crush on Kotonoha Katsura, who rides the same train as him daily. Following urban legend, he sets her photo as his phone wallpaper - a love charm. When classmate Sekai Saionji notices, it seems his luck really does change.