Khanri'ah one of the most prosperous nations was facing a crisis...the people themselves were cursed with an illness that turns them into hideous monsters, with such a disease with no cure the king and queen turned desperate for a solution. Using their strong army they declared war on liyue..but not for bloodshed .... In order to save his kingdom the guardian Xiao one of liyue's strongest soldiers and last of the yaksha bloodline decided to make a contract with khanri'ah's prince...Aether. The contract states that Xiao must protect the khanri'ian royal bloodline till its very last breath.