De Winningdays Tuma Outa wakes up from nightmare once in the morning, and when he sees his reflection, he has a horns out of his head. Suddenly a cute knight from the world of demons hit him on his head. The horns are compressed, but it is still not free, because a small knight, Pupotios, there, to prevent him from completely turning into the king of demons, whose soul entered the body of the coat. Pukapuka's hammer can return it to a normal state, but it slowly charges. At the same time, the ulta should try not to have worldly thoughts or be a kissing, but it is easier to say what to do with His in love with Syurayuki Kimhek, a small demon Garbelion and even Puffareios around ...