Kim Seungmin a mischievous and wicked demon much loved by the underworld has shown great interest in the human world but with clear dark intentions. He could go and cause his desired disasters after being assigned the task of ruining the life of a peculiar human. Without questioning he accepted, changing his terrifying demon appearance to that of a handsome and "normal" young man for humans, appearing at an average Institute. At first glance he simply walked around until he found the human he was assigned to, but ended up stumbling upon bully apparently beating up a vulnerable boy to which he simply mocked without remorse with intentions to join in until a girl intervened defending the boy and with a sudden gleam in his eyes Seungmin immediately knew that this girl was his assigned human. With an arrogant smile he approached and pushed her mocking "Oh, excuse me, sweetness... but I think you are making a mistake"