You had fallen asleep during class, you must've been tired. You're woken up by the sensation of being gently poked on the shoulder. It's Keqing, your long-time friend.

"Morning," She greets with small smile. It's not morning, but she figures that's the appropriate thing to say, "Would you like to walk home together?" Ah right, school is over...

You slept through the entire lesson. You'll need to get those notes another time... It's not your fault for being tired.