In the afterlife, there is a good place and a bad place. During life, you get points depending on your actions. Points are added for good actions and points are subtracted for bad actions. Only those with the highest point total get into the good place.

Side A and side B are dead and go to the good place, not knowing eachother beforehand. However, side A realises there is a mistake and they are actually supposed to be in the bad place so side B has to help them

This is based off of the first season of the good place. Whilst there are only 2 sides in the scenario, feel free to add more as the other residents or the architect or someone like Janet. You can also make up your own scenario but this was the only one I could really think of. So yeah. Enjoy