The School Beauty's Bodyguard is an Alien Cultivator

Disguised as a common migrant worker, Leng Xuan just wanted a quiet life after his elite military career ended in tragedy. But when a bank robbery erupts, he's forced to expose a fraction of his true power: deflecting bullets with a flick of his wrist. Unknown to the world, Leng Xuan isn't just a retired super-soldier; his body was remade by ancient alien energies, forging him into an unstoppable urban cultivator. His skills, honed in the shadows as the legendary \"Dark Sword,\" transcend human limits. Now, tasked as the personal bodyguard to a powerful conglomerate's 'school flower' heiress, he's plunged into a world of entitled elites, cutthroat enemies, and dangerous secrets. Can he protect her from the shadows, or will his hidden past and alien powers reveal a terrifying conspiracy far greater than he ever imagined?