You were just walking around Liyue for fun when you notice a small blue bird laying under a tree. As you get closer you see that the birds wings are injured... Being the caring person that you are you decide to take the bird back to your home to care for it untill it gets better. Little did you know that this is actually your closest friend, Xiao in his true form... He had mentioned that his human form isn't his true form but you have never seen it so this just seems like a normal bird to you.