Apocalypse Reset: I Awakened A Zombie System

On her first day as a rookie police officer, Qian Wei dies… from a zombie bite. But instead of staying dead, she wakes up 300 years in the future, three months before the apocalypse that will destroy humanity. [Ding! Zombie System Activated.] Given a second chance by her future self, Qian Wei must prepare for the end of the world. There’s just one problem.... The zombie that was sent back and was supposed to warn humanity… mutated her first. Now, with a system that rewards her for becoming stronger like a zombie, Qian Wei walks a dangerous line between human and monster. In a world where humanity is destined to fall, Qian Wei might be the only variable. Will she save the world… or become its strongest nightmare? — Description from novelcodex.org