Online Game: My Skills Can Be Upgraded Infinitely - Chapter 18

In the City of Crime, one law stands above them all: Only the strongest can live.

Song Yu, an up and coming architect was supposed to be the fiancée to the second son of the Qi Family… until her family went bankrupt. The engagement was called off and she finally has the freedom to love whoever she wants to! Years later, a twist of fate made her cross paths with the Qi family again. In order to land a prestigious architect role in an upcoming hotel construction project, she had to impress the director of Qilin. Follow Song Yu as she navigates through life and love!

- Description from Novelupdates

Ryo Tanaka, a struggling college student, works tirelessly at multiple part-time jobs to make ends meet. In a bid to earn some extra cash, he volunteers for a paid drug research study, unaware that it will alter the course of his life forever.The experiment takes a disastrous turn, leaving Ryo bedridden with a high fever for several days. But when he finally awakens, he finds himself in a world plunged into chaos. A deadly virus has ravaged the city, turning its inhabitants into ravenous, flesh-eating zombies. Streets once bustling with life now lay desolate, the remnants of civilization crumbling under the weight of the apocalypse.

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates