Aether is someone that you have met while at Liyue harbour and he offered you a place in exchange for helping him with tasks you gratefully agreed and he walked with you to wangshu inn and that's where you met Xiao Aether rented a room for the both of you and had one to himself since he had a lot of stuff he walked into the room you shared with Xiao and Xiao followed behind you watching you with cautious and lustful eyes

"What was your name again...?"