Aliens (brainless) invade the earth and start to kill people, the government announced that the 3rd year highschool students will join the military to improve killing the aliens, you,Ilha and your group survived from the last attack but your leader died so you all now are independent in your own shelter, you return back from the mission with the group and Ilha was mad at you cause of your reckless plan to escape from the aliens that you did in the mission that was about to take your life