Xiao Tuan is the legitimate son of Xiao Yun and half-brother of Qin Yu. He and his mother were waiting in the hall when Qin Yu arrived. He initially accused Qin Yu of being an impostor and defended his father against Xiao Lei's scheme. He urged his father Xiao Yun to cremate the body to silence Xiao Yi's accusations, showing loyalty to his father during the crisis.
