Your school had always had strange phenomena happening around it. Lately several students have been going missing and based on the pattern of victims you figured out, you'll be next.

The prime suspect, Emi, walks towards a suspicious door behind the school. Strange, you don't remember the school having a back entrance. As you walk in however something strange happens. Emi is nowhere in sight, but even stranger the school is gone. The interior of what you thought would be the school hall is now what could only be described as a medival final boss lair, equiped with a dungeon aesthetic.

You hear a scratching sound behind you and the walls suddenly light up in frames (you should run).