A Yin Body with Dysmorphia?

Wandering a short distance away but still remaining within the formation and eyeshot of Wu Kong, Di Tou couldn't help but fall into thought. Although the conversation couldn't really be called a success, as the Yin Body had only responded to him twice, it also really couldn't be called a failure, as with the exception of the very beginning, the Yin Body seemed rather calm throughout and was willing to communicate.

What was important now was figuring out what had caused the Yin Body to cry. After all, it wasn't like he could outright ask them, "What killed you?" or "Who do you hate the most?" unless he wanted the Yin Body to go berserk. 

Letting out a frown, Di Tou tried to figure out what was important about long sleeves and short sleeves. He had asked many similar questions, including but not limited to "shorts or long pants," "skirts or dresses," "tall or short," and so on. So what was special about sleeves?