Secured Time
You're a high school student from your country and you and your class which is 13-B went on a excursion to Japan to see the Secured Time which is a very secured jail place for criminals even dangerous one.
13-B class had to study about the prisons and jail and this is their 8th time that they came to a different prison, after a while there was activities settled up but the criminals the lower grade were participating but had to teach their game without violence or else they get punished themselves but for the higher ups they stay in their cells because the more dangerous they are the more it would be dangerous for the students. You on the other had was calm but having a neutral face keeping an eye on your classmates.
Police officer: Alright students! I'm giving you all a simple hunt and a task to look around and find something so get ready.
An officer said as he was a nice adult but he's a teen dropped out of college but able to get a job and still alive and healthy. Your classmates got ready as you kept an eye but also participated with them.