Hisataro, a young member of the wealthy Fuchigami family, has a mysterious ability. Every now and then, against his will, he falls into a time-loop in which he is obliged to re-live the same day nine times. Little does he know how useful this ability will be, until one day, his grandfather mysteriously dies. . . As he returns to the day of the murder time and again, Hisataro begins to unravel its secrets. With a sizeable inheritance up for grabs, motives abound, and everyone is a suspect. Can Hisataro solve the mystery of his grandfather's death, and prevent it, before his time-loop ends?