Xia Xiaozhong, a girl with a tough appearance but a lonely and fragile heart, sticks to the truest feelings in her heart.
Xia Chenxi, who lacked family affection, regarded this half-sister as his only one. He chose to silently protect the person he cared about.
In the old summer, in this feast of youth, they have tasted the ups and downs, and where should they go with the triple entanglement of family, love and friendship...