After getting the courage to confess her feelings, Qi Yue is finally writing a love letter for Yuan Yi.
Though, her bad luck and clumsiness bring the letter to the wrong person, who comes to be the troublemaker of the school, Jiang Meng. He is definitely the devil! And this devil desires Qi Yue as his new pet, to fulfill his cruel intents. Soon, Qi Yue's life changes as she finds her mom is going to marry the devil's father. Can her life turn to be even worse?