MTL - After Time Travel, I Married the Heroine and Her Brother - Chapter 33

Civilization is destroyed and records lost. Only Dudian survives in a cryogenic sleep. Three hundred years later, Dudian wakes up and must become Dean to survive. Who can he trust in this world overrun by monsters without and within?

- Description from Novelupdates

Reborn in 2004, facing the age where pigs can be blown up, Lin Xuan, carrying the “Strongest Cottage King System”, started galloping…

In an era of global awakening of supernatural abilities, Lin Tianming awakens his SSS-level talent. He thought he was about to reach the pinnacle of his life, only to overhear the heartfelt thoughts of his school beauty girlfriend who hates him to the core.[Lin Tianming, you didn't expect me to be reborn, did you? In my previous life, you let me down. In this life, I will not be fooled by your sweet words again!]Having a reborn girlfriend who is merely putting on a show is already troublesome enough, but little does he know, there's more than one person he has wronged. At this moment, each of them is on their way to find him!--------------------------Features elements of Lovecraftian horror, with themes of inner demons, corruption, genetic ascension, mechanical ascension, and psionic ascension emerging in the later stages.

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.