"What were you thinking when you inserted the knife into Li Wei's chest?"
"Maybe it was the scene of being bullied by her in the past, maybe I wanted to see her struggle, maybe I felt that I could finally be freed, maybe... There are many possibilities, but I can't remember what I was thinking at the time. I only remember that my mind went blank afterwards. I just didn't expect that part of my life would be ruined by her, and the other part would be ruined by my own hands."
"Do you regret it?"
"What's the use of regret? Once something has been done, there is no room for regret. Otherwise, what else do we want you police to do?"
"Is there anything else you want to do that you haven't done yet?"
"... No more."
Purpose: Against campus bullying