The heroine Yu Xiaoqi is a sophomore girl who meets Bai Lang, the landlord's son, during a trip. The two of them were fighting together. During the fight, Bai Lang gradually fell in love with this girl who was six years younger than him. However, this little girl seemed to only regard him as a big brother. Just when he was about to express his feelings to her, a family dinner changed the fate of the three of them. How will the relationship between Bai Lang, Xiaoqi, and Lin Xin change? ?