Edge of Tomorrow / Kill. Die. Repeat. AU
Live. Die. Repeat. → AO3 supercorp | 7,718 | 1/4
Summary: When Earth falls under attack from invincible aliens, no military unit in the world is able to beat them. Not until Lex Luthor with help from his unrecognized sister Lena invents a miracle: the Lexosuit. Shortly after, Lex disappears and newly promoted Major Lena Luthor, who has never seen combat, is assigned to the front of the war. Killed within minutes, Lena finds herself thrown into a time loop in which she relives the same brutal fight -- and her death -- over and over again. However, Lena's fighting skills improve with each encore, bringing her and a comrade Kara Danvers ever closer to defeating the aliens.