I need Yin Yu as a mother to He Xuan. Yeah, yeah, 'He Xuan is older than Yin Yu' BUT NO. IF YIN YU CAN LOOK AFTER HUA CHENG, HE CAN LOOK AFTER HE XUAN.
Think about it. He Xuan is rarely seen, but we know that he has to have some form of contact with Hua Cheng. I think it'd be funny as fuck if this contact is through Yin Yu, who pops by every couple of weeks for a report.
At first, that's all it is. For the first year or so, they have a very small, very formal relationship.
Then Yin Yu accidentally comes around when He Xuan is out. Obviously, he still needs the report, so he starts looking around and is appalled by everything. The random papers scattered everywhere, dirty plates left on the floor, RAW MEAT half eaten and then left to rot.
There seems to be no room that can be classed as He Xuan's private chambers - the closest is what Yin Yu labels He Xuan's 'rage room', filled with statues and paintings of Shi Wudu, but all trashed and ripped apart with what looked like claws, perhaps an axe, and very determined fangs.
Of course, by the time He Xuan is back, everything is in order and suddenly tidy, and he's getting cooked food shoved into his hands by a scolding Yin Yu, who is very used to dealing with Hua Cheng when he gets like this. However, He Xuan seems to be that but times ten, because Hua Cheng can be scolded into taking care of himself through βdo you think your beloved god will want to see you if you're like this??β, but He Xuan only seems to care about his pets.
So, Yin Yu strong arms He Xuan into allowing himself to be taken care of and YES, he may be a bit protective of the ghost king that becomes a stroppy child the moment he's told to do something as heinous as take a bath.
At first, He Xuan is baring his teeth and threatening the other man's life, but he can't hurt Yin Yu (Hua Cheng would beat him dead). By the end of it, he just gets exasperated and reluctant and maybe a bit pleased at the care.
Hua Cheng finds amusement in this, because he enjoys reminding Yin Yu about He Xuan's capabilities to try and remind Yin Yu that he should probably not treat He Xuan like a child, just to receive a βyou try to get that man into bed on time and tell me to treat him like a fully grown manβ. Nobody can treat He Xuan the way Yin Yu does. Yin Yu is the kind of person to subtly threaten Shi Qingxuan like a mother would. "You hurt my baby boy and you'll know about it"
Thank you for coming to my Ted talk.