The story begins with Zhao Wen, the mother of Liu Xin (the protagonist), and Zhang Li, the best friend of Liu Xin's mother. The two of them made a promise when they were young. As for the content, it means that the children they give birth to, regardless of whether they are boys or girls, good-looking or not, must have a baby kiss. But by coincidence, Zhang Li gave birth to two girls, and Zhao Wen also gave birth to a girl. There was no other way. After all, they had made a promise and had no choice but to abide by it. When they were young, Faye Wong, Wang Jing (Zhang Li's child) and Liu Xin didn't understand anything. They just played well. When they grew up, they slowly developed feelings for Liu Xin. Unfortunately, Liu Xin was a stubborn person and didn't know how to accept other people's "good intentions"...
Intention: No intention