It was a manga about Japanese high-schoolers (no surprise here), who had some superpowers and were sent to different places to battle. It started when they were on a battlefield, and a bunch of them died. One of the main characters was a kinda psychotic guy who had a katana with some hypnosis ability, and there was a scene where he stopped another character from stepping on a mine he somehow knew was there, and somehow knew that when they were hiding in a building, just before they were attacked he knew and predicted who'll die. He also hypnotized some soldier woman and tortured her, and he also spoke in her language, or at least it was shon this way. There was also a blonde glasses guy who was very knowledgeable, and could find a sniper who shot at them, but had a very bad memory. Another main character was a girl with superstranght, and some berserker ability which made her even stronger, and she took down a helicopter.