"Many different research facilities exist in Cruzentes, but are the same time many of them get destroyed by the assaults from the outside and the uprisings from the inside. They are the Lab Rats who slipped out from these ruined facilities. There have been various Lab Rats with different backgrounds, but none of that matters as they're forced into a life where only the strongest survive. Alone or in groups, these beings do whatever it takes to survive in this infernal world."
— Team Story