Male, also called Little Six and Sixth Brother, the seven-year-old youngest son of Mu Si and Rong Qing. He is the youngest member of the Mu family, frail at birth but the most scholarly among the Mu boys, inheriting this trait from his father. He is deeply attached to his fifth sister Mu Rong Shu and becomes her biggest cheerleader. He accompanies her on outings and curiously asks about Wen Jing courting her.
