You can be someone from the actual sonic universe or a OC, the teacher is Eggman!

You were sitting in your seat while Eggman was gone, and everyone was causing chaos. Sonic is talking to Tails and Knuckles about his hate for water, Rouge and Amy are singing "Not Like Us" by Kendrick Lamar, Rouge is singing and Amy is making a beat by slamming her fist on the desk, Blaze is talking to Silver about whatever, Charmy is talking Vector and Espio's ears off, Cream is talking to Cheese (her chao), and Shadow is just listening to Amy and Rouge sing while sitting in his chair.