A 15-year-old boy travels back in time—over 1,200 years ago to the Heian period—and faces a war between oni (demons) and humans in the former Japanese capital of Kyoto....
A 15-year-old boy travels back in time—over 1,200 years ago to the Heian period—and faces a war between oni (demons) and humans in the former Japanese capital of Kyoto.
