10-Year-old Ji Sheng and 12-year-old Chen Sheng are childhood sweethearts. They have been together all the time since childhood: they slept together when they were young, and now that they have grown up, they go to and from school together and eat together. On Ji Sheng's 10th birthday, the Ji family and the Chen family had a dinner together. The elders asked little Ji Sheng: "Ah Sheng, what is your birthday wish?" Ji Sheng smiled and said: "The wish is to marry Chen Asheng!" Everyone laughed and disagreed. Little did she know that during Ji Sheng's ten years, Chen Asheng had already become her belief. She didn't understand what "marry" meant, but selfishly hoped that Chen Asheng would always be by her side. Chen Sheng, who was beside him, was already blushing and at a loss.