C122 I have long be unable to pay off the debt i owe him

The people of my company all know that there is a staircase there, and when they walk past, they would be a bit careful. When I first entered the company, I was tripped on this step, because it was so low that I couldn't see through it. If an outsider were to walk past here, they would definitely fall.

I just wanted to tease this arrogant Su Yawen a little