The Security Guard Who Made Gods Cry

Lu Chen transmigrates to a high-martial world and becomes the most inconspicuous logistics security guard at a martial arts university. He awakens the Absolute Defense Counterattack System: getting hit boosts his blood energy, being struck triggers breakthroughs, and a basic attack becomes a divine skill! Freshman assessment? He wears his security uniform and crushes a genius's contracted beast with one kick! Secret realm crisis? He single-handedly sweeps through S-rank beasts, stunning the entire city! Alien invasion, gods descending? All beings fear the might of myriad races, but he alone goes against the current. Blood energy surging, one punch shatters divine manifestations, one kick suppresses the galaxy! From a small security guard in Jiangcheng to humanity's undefeated war god, from an ant among the heavens to the sole Dao Ancestor ruling the epochs! The world knows him only as a gatekeeper, but little do they know—all gods bow before him, and ancient immortals are made to cry by him! — Description from novelcodex.org