Lu Lisheng thought that no one needed to face people or things in the world with a dedicated attitude, until he met Nan An. Lu Lizheng has been withdrawn since she was a child. The appearance of Nan An, the tenderness Nan An brought to her, Nan An's attentiveness, and everything about Nan An made Lu Lizheng feel more at ease than ever before. Gradually, she found that she fell in love with Nan'an. But when she faced her heart, the Nan An who was the best to her disappeared.