Zhan Yu begins to persue Lin Beixing, he tells her that he'll go to Class 1 with her together and also challenges Zhang Wansen to a basketball duel. Lin Beixing accidentally gets trapped in a room during the basketball game. She later discovers that Zhang Yu wasn't the one who saved her from fire accident back in middle school. Lin Beixing gets puzzled. Looking at Zhang Wansen's familiar face, she asks: Did we know each other before? (Source: Baidu, MyDamaList)