Foolish Older Brother, Clever Younger. Together with Osamu Oyama, a boy who uses demons, and Ose, a devil with the ability to "imitate", Dochin plans to make a profit by copying a large number of dolls of Mossan, the character of the popular Ai☆Curry Expo. In fact, Morocc, who was the model for this Mossan doll, and who lost his grimoire to an angel, had his younger brother, Mossan II. Azazel and Beelzebub head to the demon world to show him the Mossan doll. The younger brother becomes enraged at the sight of his older brother being humiliated even after his death. The three of them manage to get past Sakuma, who is suspicious of Azazel and his friends, who are acting suspiciously, and wait for the waste side...! ?