MTL - Returning from the Low-Magic World, I Created My Own Artificial Intelligence - Chapter 512 Archmage shines into reality

There’s a legendary Bishoujo Game that has become popular among Japanese gentlemen.

Amidst a world plunged into chaos, where rituals have collapsed and music has spoiled, and the universe is muddled, Gu Qingfeng finds himself transported to this tumultuous era.Initially, he only desired to live out his remaining years in peace. However, the birth of his first son made him realize that things were not as simple as he had imagined...

Birth rates are decreasing. Hope is vanishing. The world has gone gray.Humanity, drifting in quiet collapse, receives an email.Every person on Earth. Simultaneously.The Aegis Mandate.Disguised as a cosmic aptitude test, it triggers The Incident of Separation—a global psychic cataclysm that erases identities, wipes memories, and divides all survivors into three factions: Law, Neutral, and Chaos. Overnight, cities become battlegrounds. Apartments become dungeons. Ordinary people become monsters—or the ones who hunt them.Ragnar Vhagar was just a loner university student. Now, thanks to a system he didn’t ask for, he’s a newly minted Demon King, locked in a crumbling apartment with goblins under his sofa and a glowing soul crystal next to his frozen peas. His new job? Build a deadly domain, defend it from invading “Heroes,” and somehow level up fast enough to not die.Alongside him is Isabelle Thorne, a razor-sharp warrior of few words and one very sharp sword. Their reluctant alliance, born in blood and snark, evolves into trust—and maybe something dangerously close to affection—as they rise together through the layers of the game-like world they’re trapped in.With each conquered domain and defeated boss, Ragnar realizes the truth: the dungeons aren’t meant to crown a winner. They’re meant to break the players. The Law faction wants control. The Chaos faction craves destruction. But Ragnar? He wants something they’re all too afraid to say out loud:Freedom.In the ruins of Kanta’s ogre stronghold, Ragnar and his misfit warband take their biggest step yet—claiming a kingdom, unifying a fractured system, and preparing for what comes next. The Heroes are watching. The gods are stirring. The world is watching a war.And somewhere deep beneath it all... Ragnar is rewriting the rules.

TRPG, or Tabletop Role-Playing Game, is characterized by immersive role-playing where players embody their characters. Within the rules, players can steer the story in various open-ended directions, leading to different outcomes.“Cthulhu Campaign” is a major category within TRPGs. In it, players, as ordinary individuals known as investigators, delve into mysterious events, face unknown mythological creatures, and confront unfathomable fears. A key piece of advice in this realm is that the less you know, the longer you survive.Liu Xing, driven by curiosity, wanted to join an online Cthulhu campaign but accidentally became part of a real Cthulhu role-playing game…