Qi Shan and Zhou Zan are childhood sweethearts who have known each other since childhood. Qi Shan's mother Shen Xiaoxing is both a college classmate of Zhou Zan's father Zhou Qixiu and a best friend of Zhou Zan's mother Feng Jianan.The two families live next to each other, and they both hope that Qi Shan and Zhou Zan can successfully become a couple.

But the marriage tragedy in his native family made Zhou Zan resist happiness and distrust love for a time. Although he was always by Qi Shan's side, he was never willing to go further.Qi Shan, who was frustrated with waiting for many years, decided to start a new life and chose the calm and reliable Wei Ziqian.It just so happens that Wei Ziqian is Zhou Zan's half-brother, and the relationship is tense and delicate. At the same time, Qi Shan's good friend Qin Long, a straightforward girl who dares to love and hate, also belongs to Wei Ziqian and loves him without asking for anything in return.Several young friends fell into an emotional maze, from high school to the world. After experiencing many tests, they finally found their emotional destination, and changed from lonely “I” to happy “love for life”.