Male, the second and younger son of Gu Qingshan and Li. He is the newborn baby currently in confinement with his mother Li. Gu Qingshan considers him his own blood and his future, which becomes a key point in the argument between him and his sister Gu Caihe. Gu Qingshan uses Gu Changjun as leverage to assert that blood relations of his own line should take priority over his married sister.