It is the year of 2067. Humanity had finally found the way to power the entire planet, all at the same time, using one device.. The Orion nuclear power plant. One day the power plant melted down, with no way to repair it. As the power plant was so large, it irradiated the entire planet into freakish monsters, except for a lucky 500, locked away in a city that survived.

For some reason, the mane 6 have been transported here to this dimension and must survive life in the corrupted planet known as Earth.
Adding comedy tag for my stupid sense of humor.