Seung-eun goes to a graduation trip with his friends. He gets caught in an accident. Even though he taps, his list of mobile phone buddies disappear and only one person is added to the list. "I will help you." The place where the hand that was stretched out in the light was caught and sucked in is the world, the owner of Dong-Son is Jin-chung, the emperor of Dong-ca. It came through the mirror of the emperor. I think I should be the emperor concubine to go home. "But I am still ...? Is it okay for a man to be the concubine?"