I Am Already a Boss in the Apocalypse, Let Me Be Reborn as a Bodyguard

Ye Chen, the boss of the post-apocalyptic world, returns from rebirth. In order to trace the source of the virus, Ye Chen becomes the bodyguard of Jiang Mengyao, the director of the beauty factory. While secretly investigating the mastermind behind the scenes, he killed assassins in a crisis-ridden city, subdued his younger brother, and even won his heart while fighting side by side. When the truth gradually emerges, can he reverse everything before the end of the world?