Poor doomed Mo Xuanyu. Went to Carp Tower at age 13. Expelled by Jin Guangyao. Returned home and started powdering his face or wearing a mask. Everyone thought he was expelled for his crush on Jin Guangyao, but he might just have been more observant than everyone else.
"Mo XuanYu was one of Jin GuangShan’s illegitimate sons, which made him a half brother of Jin ZiXuan and Jin GuangYao. In terms of the generations, he could be considered Jin Ling’s uncle as well."
Mo Xuanyu was aware that something strange was going on with Jin Guangyao and it might have been the real reason he was kicked out of cultivation training.