My Sword in Outer Space

Humanity cowers behind the Sky Sword Net, their last defense against relentless ironclad armies. When the barrier shatters and his mother falls, He Yuanjie swears vengeance—he'll join the Sentinels and annihilate every last ironclad. But his quest for revenge leads him to a devastating revelation: everything he knows about the world is a lie. What if the real enemy isn't what he's been fighting all along?