Four grown demons (Enma, Yukihime, Kapaeru, and Grandpa Chapeauji) are part of a Yokai-Patrol searching for demons that have escaped from Hell into the human world. They form the group known as the Enma Detective Agency as a cover for their activities.

1.Demon Prince Enma
2.Satan Claus
3.Demon Express Delivery part 1
4.Demon Express Delivery part 2