Cheng Lixue Uses Fu Hua as a Striking Board in Honkai

“Master, why did you leave me back then?”

“The words left unsaid became a heart demon, making it hard for Jianxin to break through to the Dustless Realm.”

(That's not it at all. Strike that.)

The right way to put it is...

“Master, if you leave me, I'll tell everyone you've been mistaken for an antique Shen Zhou tablet for thousands of years.”