The main character, Hotaru (Otomo Hana Koi), was killed in a bus accident during a school trip along with his unrequited partner Ren Otaka (Shoshin Kai) and his best friend Shiori Yamamoto (Ai Kitano). Will end up. Kuro (Yuta Ozeki), a guide to the dead, appeared in front of the ghost firefly. He tells that he cannot succeed in Buddhism unless he solves three unsuccessful things left in the world. Firefly knew that one of the unskilled things was to confess to Lotus who had been crushing for five years. However, I cannot convey my feelings in front of the lotus. What was the secret behind Firefly\’s decision? Warm tears flow into the unexpected last.