A group of heroes as well as a group of villains from Earth have been chosen as candidates for The Reincarnation Proticol program. 
They were each selected due to their characteristics, habits, or beliefs. 
In this issekai series they get to choose what they will become in their new lives.
The candidates were not chosen at random, or even by mere chance.
Will the protagonists or the villains be the first ones to discover the true reason behind their reincarnation to this fantasy world; or will they ignore that and simply move on with their lives. Only time will be able to tell.