The noble third prince of the demon world was beaten to a pulp by his own brother, who had a long-standing grudge against him. He was also thrown into the mortal world by accident. Having completely lost his magic power, he could only possess a bear doll at the critical moment. In order to avoid death, he had to compromise and negotiate terms with humans. Those egotistical and kingly demeanor instantly collapsed in front of a human chick. Can he, who has endured such humiliation and bear the burden, return to his demon world and continue to be his prince of the demon world? Or can we only stay in this humble mortal world forever and become a pitiful plaything in the hands of humans?