1.
Everyone said Yun Qinghui wouldn't survive the first instance. He seemed to have a terminal illness, covering his mouth to cough every single day.
Player: What a waste of such a beautiful face. Nice to look at, but useless.
But they witnessed the devil's arrival with their own eyes. Every time Yun Qinghui coughed, he would tear monsters to pieces. He walked calmly through hell, bringing a new hell in his wake.
2.
Yun Qinghui was a beast tamer. He tamed every species, then gradually set his sights on nonhuman creatures.
This one's too stupid, don't want it. This one's too weak, don't want it. This one's too ugly...
While everyone else ran for their lives, he picked out his prey. In the end, he discovered the evil god behind it all. The brush with death sent his blood rushing through his veins, and the stronger the target, the more obsessed he became.
Yun Qinghui succeeded. The great god lowered its head, willingly letting him put a collar around its neck and making itself his possession.
Note: The bottom isn't a good person through and through, and is even a little wicked. He often puts himself in danger to find prey, but he's confident he'll succeed every time, and he does.
The top is a collection of fragments. Each version of the top is basically boss-level. Taming them is the bottom's hobby, and it's what he came here to do.
Lovecraftian style
Theme: Love can overcome anything.