Fabre in Sacheon's Tang - Chapter 120: Poisoning (2)

The strongest King of Soldiers returns to the city of flowers, becoming his fiancée's cohabiting bodyguard!

In order to live he must get close to girls, what kind of rule is this? Tang Zheng possess the Nine Yang Saint Body, a rare body constitution that is hard to come across within a millennium, yet he must absorb pure Yin energy to stay alive. In order to live, he will fight! Absolute campus belles, goddess teachers, charming housewives, haughty lolis… all kinds of woman walk into his life causing him to be surrounded by beauties!

- Description from Novelupdates

An unsealed condom package shattered her steadfast adherence to and fantasies about love, causing the beliefs she had clung to in her heart to collapse in an instant. Liman discovered that not only had her husband been unfaithful, he had also transferred assets and even tried to frame her to get her to leave with nothing.Facing her husband's betrayal, Liman began to seek vengeance!

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.