The play mainly tells the various events that happened in the family of Jiang Yuxuan, played by Tian Jiada, and his sister Kexin, played by Hai Lu. In the play, Jiang Yuxuan and his sister have been very close since childhood. Jiang Yuxuan puts his sister first in everything and protects her from being bullied by others. Jiang Yuxuan arranges his friends to pursue his sister in the hope that she can have a good home. At the same time, he also drives away the unreliable boys around his sister, and is very hostile to Daosheng (played by Jerry Yan) who has a misunderstanding with his sister. When there is a conflict between his love and his sister, he chooses his sister without hesitation, which is even more touching.