However , Luis accidentally kills several of the local kids who were being paid to summon and control a huge monster .
After working as a mercenary for two years , Kotarou takes part in a mission to take out a narcotics factory where monsters have been spotted .
Luis accidentally kills several of the local kids who were being paid to summon and control a huge monster .
After working as a mercenary for two years , Kotarou takes part in a mission to take out a narcotics factory where monsters have been spotted .