Ever since a peculiar incident in her childhood, Mamiya Sakura can see spirits everywhere she goes. This ability follows her into high school, where an enigmatic boy named Rokudou Rinne appears at the desk next to her. Rinne shares Sakura's supernatural sight and often goes unnoticed by others. As they unravel the mysteries of their shared gift, Sakura delves into a parallel world teeming with eccentric beings, guided by Rinne's unique knowledge and presence in Kyoukai no Rinne.