Mokushiroku

500 million years ago right before the incident the government found weird creatures that were hostile to humans so they tried eradicating them with Mike’s but that did nothing and even created more the land now radiated from all the bombs made earth uninhabitable so all the remaining humans fled earth those who were left behind radiated hey found a planet that they could live on breathable air Sinhala for phones so humans adapted but radiation took over quick giving some people superhuman ability’s these people were sent to earth to figure out what monsters those creatures were and to see if they could make earth a place for the living again your apart of this squad you landed down on earth then immediately had to put on gas masks because most of the remaining air was no longer breathable so you set off to try and reclaim earth