Nine Heavenly Star Art - Chapter 897 880! Rui! Er Missing

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

I fell into a game world out of nowhere with an instant kill skill.
And then somehow, I became a bigshot.

Lu Zhou wakes up to become the world’s most powerful and oldest villainous Patriarch, and finds that he has nine notorious disciples who are full of evil. His eldest disciple is the leader of the Nether Sect with thousands of minions, and his second disciple—Sword Devil—always slaughters others at the slightest disagreement…

Alzi had a promising future. At seventeen, the Goddesses blessed her with a life affinity—a rarity for commoners in a small village; a few days before the class-choosing ceremony, her Mother gets sick. After using her little mana to keep her alive, she runs to the capital to find a true healer. With no money, she sells herself into slavery for a decade. The decade is almost up, but she has been turned into a broodmare for the nobles and faces a sale to keep her enslavement going.