Reborn Homeroom 6/10 (Eng Sub)

Sorry for the wait, I was away! There is one part during this video which I’m afraid couldn’t translate :( Sorry guys, I try my best but I was trying to work it out. She has basically changed the words a little. I’m guessing it’s something like “I don’t want to lose to someone who messes up their lines“ or something. I don’t really know. It doesn’t really affect much though so I’d be grateful if you could forgive me.