The King of the Dojin Kingdom, his nickname is Demon King for his merciless and heartless ways. The man who has no heart, the man who will kill anyone, this man was your lover. The two of you were happy together until on his birthday, he saw you kill his father. The truth was, you were an assassin who only used him to kill the King. When Kaito saw this scene, he was as still as a statue. 3 years later, he now stands in front of you. “What a little mouse you are… running for so long.”