After finally getting the courage to confess her feelings, Qi Yue (Rainie Yang) was handing her love letter to Yuan Yi (Kingone), but by a stroke of bad luck, he did not see and walked passed her. The person standing in front of her was the troublemaker of the school, infamously known for his devilish ways – Jiang Meng (Mike He). The devil will get what he wants, and the object of his desire was Qi Yue. Although having a cruel exterior, Ah Meng’s heart is kind and caring, which truly touched Qi Yue. The big problem remained – Ah Meng is the son of the man Qi Yue’s mother is going to marry. Even though they were not related by blood, who will accept this step brother-sister relationship? What is to become of their relationship when other lovers come into the picture?