In the Magic Shop, there exists a door of great mystery. It holds infinite power, and to contain this power, it was sealed off by a powerful wizard. Behimd this door is a room that is randomly chosen. It could lead to anywhere, where anything could happen. In this room, there is yet another door that leads to another randomly generated room. One room may lead to an icy fortress of dangerous creatures, the next a smutty haven of beautiful women, the next a room of paintings that can transform the viewer, and so on. The possibilities are endless.
One day, the seal the wizard put on the door began to fade. The door was now able to be entered by anyone who stumbled upon it.