May These Leaden Battlegrounds Leave No Trace, Vol. 2 (light novel)

WHY DO THEY FIGHT?In their quest for a world without war, Rain and Air have been reprogramming history itself by erasing key figures with the Devil’s Bullet. But when the two are assigned to a transport mission guarding next-generation technology, the arrival of a powerful new enemy leaves Rain wounded and stranded—and his only chance of survival is to cooperate with his attacker. They’ll need to use the Devil’s Bullet to get out of this—but on whom?