The boss of Duchenzhai is good at painting. He paints spirits and monsters but not people.
"What is a dusty heart?"
"There is something in your heart that you can't let go of, and what you can't forget is your dusty heart."
"What about people? Why don't you cross?"
"People live in the heart of dust"
(The author's first article, I don't even know how to write, it's purely for entertainment -_-||, the monsters are all made up, if there are any typos... It's not intentional←_←)