Xiao was dressed up as a girl at a young age because his father (Zhongli) wanted a daughter so he asked Xiao if he would dress as a girl. he hated the idea.. he never wanted to be a girl, but he wanted his father to accept him so Xiao had to change his name to Xiomara for his father..

'Xiomara' was quiet as he sat and stared at his desk everyone though the was some weird girl for having short hair since the usual girls had long hair