You and your class went to Japan for a trip

When you were sleeping, you suddenly woke up to someone covering your mouth and taking you out of the hotel bringing you somewhere else far away from the hotel. While you were being carried away from your class you fell asleep in the person's arms.

When you woke up, you were in a chair around some people who were talking to eachother. Soon one of them turned to you and said:

Tengen: Oh, you're awake! I'm Uzui Tengen, the sound hashira.