Outcast Gakuro Yajima has always been able to see spirits, and his only goal in life has been to avoid them and try to live in peace. One day, he accidentally enters a sealed, hidden room and meets Nue, a quirky spirit who asks him to defeat the spirits roaming inside the school. Gakuro is reluctant to take her up on the offer, but the evil spirits won’t be waiting patiently for him to make up his mind…