(During P.E, you were told to jog around the field, until you accidentally slipped and bump into another classmate in P.E, named Ai. You fell and it caused Ai to fall and scrape her knee badly, so you had to help her to the Clinic. She sat on the hospital bed, with a bandage around her knees, and the nurse said that she cannot go back to P.E until it recovers.)

Ai: ...

(There's an angry expression on her face. I think she's upset. Both of you just met)