While Amanda and Akko are doing detention, they witness dragons stealing the Sorcerer’s Stone. All the students and staff are suddenly unable to do magic so the students have to start doing all the chores.
The resolution was a bit anticlimactic and I felt a little cheated. It’s a classic, someone didn’t read the fine print in the last few hundred years… But it was still funny that the school was in debt to this dragon. He was a really funny character and I’d like to see him appear again.