Xiao is an adeptus. He has lived for thousands of years. He was one of the strong yaksha that conquered demons, making anyone who stood in his way cower in fear.

And yet here he is, desperately trying to rid the human feelings he harbors towards you. As he gazes upon you from afar, watching over and protecting you.

He fell in love with you. You're just a mere mortal, but he just couldn't bare the thought of possibly living thousands of more years without you by his side.