After taking a kihei as his Bride and overcoming the massive invasion knownas the
Gloaming, Kou Kaguro has finally earned some peace for himself and hisfriends. But
as they prepare for a festival to commemorate his hard-wonvictory, the unthinkable
happens—Kou is murdered. Over and over,endlessly... Surely there must be some
mistake? And what does all this haveto do with an unexpected transfer student?