C854 Vinegar

She was a good student, but at least she met me. I guess she thought I was the one in the class who gave her the biggest headache, but I didn't want to change it.

I walked over just in time to see her sigh, and then I asked, "What's the matter? Why are you so upset?"

Liu Tingting glanced at me and said, "Hey, you don't know, the homework teacher left for us yesterday was handed in after school