My Accidental Harem - Chapter 140

Roland died and transmigrated into the body of the third son of a Baron. Having reincarnated, at first he looked forward to the grace of the system or any other golden finger; alas, it seemed not everyone was lucky.In the end, he accepted that those were fantasies, whereas this was reality.Being the third son, he couldn't inherit land according to laws; however, he had a bit of warrior aptitude suitable to become a knight.Knowing that this might cause trouble in succession later, his father enrolled him in the army.Several years later, he became a 3rd-rank knight in the Beginner Stage and was going to be promoted but was injured when he tried to save the commander of his battalion.Amidst that, he received shocking news about his family's demise due to a monster tide, leaving him alone to inherit the barony.Weighing the pros and cons, he decided to escape from the risky venture and settle in a poor backwater barony village to lead a peaceful life; however...Just when he thought it was over, he awakened the Children's Blessing System.[Host's child detected, Family System activated.][Begin testing the child's aptitude.]“What, for real?”

Years ago when she was only a young girl, Rose ran away with her two friends Alexander and Mathias, just when they were about to be branded as slaves and sold to work in a brothel. Misfortunate fell on the group as Mathias became stuck and to save them, Rose sacrificed herself to distract the brothel owner’s son Graham who hunted them.Rose made her friends promise that in exchange for her sacrifice, they would return to free her. As the years passed and Rose reunited with her friends, she learned that all promises would not be kept.Stuck in a brothel with a man who wishes to turn her into his woman, Rose starts an unexpected relationship with Zayne Hamilton, a general of another kingdom. Zayne offers to buy her from Graham and opens the way for her sacrifice to not be forgotten.

Calamity descends upon a a tranquil world in the black of night, transforming it into a death game! This a a true apocalypse, but this is not the end of humanity!

- Description from Novelupdates

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