Stone Mage: Revenge of the Villain System - Chapter 12 The House of Sapphires

“Elysia, why are you always subtly asking about how Michael's doing?”“Oh? Do I? Maybe it's because he was the only Herrscher in our era who fought for humanity! He was both the First Herrscher and a human named Michael. Yes! That's definitely it!” Facing Mei's question, Ellie just offered a faint smile.“What about Mobius?”“Tch!” The green-haired little girl snorted dismissively, turning her head away.“Who else?” Mei covered her face.“Pardo?”“W-w-what! Kalpas is clearly very concerned about Boss Michael too!”“Get lost!”“Kevin?”“It's not entirely what you think. He has a much more important meaning to us—a family member we promised to walk towards the future with.”-----True Love Warrior Protagonist, Not very Mental stable Protagonist, Pessimistic Protagonist, Anti-Hero Protagonist, Crybaby Protagonist, Michael x Elysia. Oh, Michael... Don't come here; I'm just writing nonsense.

Mimizuku, a small girl with chains on her wrists and ankles and the numbers “332” branded onto her forehead, wanders into the Forest of Night seeking to be eaten by a monster. However, when the ruler of the monsters, the mysterious and beautiful “King of Night,” refuses to eat her, she tries to formulate a way to convince him otherwise.

“Can a person suffering from amnesia have a total change in personality?”

The question lingers in Feng Ning’s mind.

Other people treat her coldly, claiming she is insidious, cunning and selfish. There were even rumors of her not being a virtuous wife and having illicit affairs with other men. However, she had no such memories.

After waking up from a heavy fall and knocked her head, she is now polite, treats people in good faith, and tries her best to get on her husband’s good side. No matter what she did, the past could not be undone and despite having no memories of it, Feng Ning calmly accepts her fate and slowly tries to mend things back. But why must fate be cruel to her? What did she do in the past to deserve this? In the first place, how did she end up in this sorry state?”

- Description from Novelupdates

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.