This story is set in a post-apocalyptic world where humans fights and survive against the hideous monsters, known as "Olimaws". The main protagonist "Arimaonga" had a traumatic past, and now is on a journey to achieve more "Power", by training and killing Olimaws on sight, but when he find out about the " Knight's" discovery, he immediately made his move by disguising himself as member of the "Knights" in order to reach his goal.