Mutsuo Yoshioka

Takashi shows up at his nephew’s fishing village with a condition that gives him nightmares from hell while asleep and extreme arousal while awake.

After precocious tween Karin finds herself abandoned by her father in rural Japan, she meets Anzu, a giant and notoriously lazy "ghost cat" tasked with looking after her. Wary of her new guardian, Karin sabotages Anzu's odd jobs for the townsfolk and befriends the eccentric local spirits. But in an effort to win Karin over, Anzu accidentally makes a deal with the devil -- and all Hell breaks loose.