Yu Zheng is sick.
He was beaten since he was a child and was treated as a guinea pig in the hospital for more than 20 years, but he was not cured.
My parents gave up, and the doctors spread their arms and declared that the disease could not be cured. Instead, an inexplicable system came out and they patted their chests and swore that they could do it.
As long as Yu Zheng nods, he can cure all diseases and everything will work.
As for the price...
Don't rush to say it.
Purpose: health