Omae wo Onii-chan ni Shite Yarouka!? - Volume 3, 13th of May, Monday.

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.

“Mu Yingying,” or the Seventh Young Lady of the Mu family, vividly remembers the cruel past life she endured.Due to the evil schemes of her stepmother and half-sister, the three descendants of the Mu family met tragic ends...The eldest son died dishonorably, the eldest daughter became mentally deranged,And she, the second daughter, was unjustly sentenced to death!Even her own father heartlessly cast his children aside...Now, she has returned once again, to the third year of the Xingping era, when “Mu Yingying” was only 5 years old.She has come back to the starting point of everything!Very well... She will drag the traitors down into the depths of hell.Her return is not for forgiveness... but to reclaim what is rightfully hers and to exact retribution on those who wronged her!“Death is not the end, but the beginning of the regret you will face.”

This novel is also known as Endless Bloodstone / Infinite Bloodcore

In the dark night there is no light, save for the sound of war drums and rally cries. The young man listens carefully, it is his heartbeat and the flow of his own blood.

What hides in the darkness ahead? Is it man, god or… a monster?

There is no such thing as the best road. However, the journey beneath one’s feet is unbounded!

- Description from Novelupdates