Countess Flora Federle had planned to enjoy a free otherworldly life since she was reincarnated as a mob in a girl's game. However, she discovers that she is left with a huge debt because of her brother's mistake. She is in despair, fearing that she will have to sell her title and lands in order to survive, when a handsome man appears before her. His name is Noah Astolta. Despite his status as a prince, he is constantly the subject of black rumors and is nicknamed the "bad prince" (but he has a very nice face)! His Highness Noah told Flora, "I'm going to take over your debt. I will take your debt on my shoulders. In return, you will serve me."