Invincible Immortal Cultivator in the City - Chapter 538 - 537: Hanging by a Thread

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

As a precocious child, Lycoris suffers from a strange sense of deja vu. On the day her father told her about her fiancé, she realizes that her fiancé was a character from an otome game she once played in a previous life.

The young lady from the Xue family was talented and beautiful, and married the dream husband at the age of 16. They had a loving and harmonious relationship and were together for 3 years when her husband attained the title of Imperial Scholar.

The ultimate power that controls everything... Time.

Rock, reincarnated in Shun Long's half-dead body when a mysterious rock merged with him, and a sudden influx of information flooded his head.

He is now cultivating in a mysterious technique that can affect time, as he adventures through the cultivation world fighting geniuses, while he reaches the pinnacle in both martial arts and alchemy.