When Chu Yu found out that he was Bai Yueguang's substitute in the heart of her boyfriend Gu Chen, he decided to disappear completely. Three years later, Gu Chen found him in a small studio and asked with red eyes, "Why did you leave me?" Chu Yu raised his hand, revealing the same birthmark as Gu Chen's on his wrist, and said softly: "Gu Chen, the Bai Yueguang you have been looking for for ten years has always been me."
