On a stormy night, Gu Chuan, a young drifter, is rescued by Mrs. Gu. A birthmark on his brow bone brings to light suspicions of a baby swap twenty years ago. Gu Jingchen, the impostor young master, frames him to protect his identity, while Uncle Qin destroys evidence and falsifies the paternity test. Mrs. Gu investigates the hospital and orphanage, confirming that Gu Chuan is her biological son. After returning home, Gu Chuan establishes an assistance fund to bring warmth and hope to more people living on the streets.