At his son's hundred-day banquet, Gu Chengchuan is found by his two older sisters, Gu Minglan and Gu Qinghe. Disguised as junk collectors to test their younger brother, the sisters are actually the chairman and CEO of Shengwan Group. The Xu family humiliates the sisters, but Gu Chengchuan withstands the pressure to acknowledge his family and is kicked out. During his divorce, he discovers the child is not his biological son, and his project results are stolen by Xu Man's lover, He Xiao. Relying on his true skills, Gu Chengchuan joins the Su Design Institute and teams up with his college sweetheart, Su Wanqing, to bid for the Yunwan old city renovation. The Gu sisters reveal their true identities, exposing He Xiao's acts of forging authorization and other offenses.