Two months after moving to Tokyo, college freshman Iku is living his otaku nerd life to the fullest. There's just one problem: he's started being able to see ghosts. One spirit in particular, a young man about Iku's age, spends day after day standing on the pedestrian bridge on the way to Iku's apartment. Though determined to live and let not-live unnoticed, Iku accidentally bumps into the handsome phantom and soon ends up with the very chat-deprived spirit of Mimori Seo haunting his apartment. Not long after, Iku notices that every night at 23:45, Mimori is drawn by some mysterious force back to the bridge and forced to repeat the fall that made him a ghost in the first place. Will Mimori be stuck in this loop forever, or can Iku find a way to save this specter from an eternity of unending tragedy?