Let's just go. Push the button.
You decide that you have had your fill of the treasure room, and indeed the dungeon at large, so you exit the cave, climb back into your homeroom through the window, and push the red button. The Window in front of you and the door behind you both seal shut, and the room shakes for longer and with more force than the elevator/control room did. In the mayhem, you barely notice your wounds closing and bruises healing.
Eventually the commotion dies down. You see the school parking lot out the window you just crawled in, and hear the sounds of a busy school hallway behind the door.
To your east, you notice a whiteboard hanging on the wall that wasn't there before.
It lists information on new adventures you might embark upon.
As you read, the intercom crackles to life.
"See anything you like on that board? Normally I insist that you take a break and do something mundane after each dungeon, but my little tutorial adventure doesn't put that much temporal strain on your body or soul. Still, if you'd like you can wander off for a bit; Work in your classes the boring way, try to make some friends, spend time with your family. Whatever you want. That said, if you want to dive right into the next one, feel free."You nod your head, and resuming your reading of the whiteboard, before Mr. Levy interrupts you once more.
"Oh. I promised you a Q&A, didn't I? Well now would be the time for that. I hope the tutorial was fairly self explanatory, but if you have any questions, I'll take them now. Mmmmmkay?"Assets by DALL-E. Character Sheet.