From Sidekick to Bigshot - Chapter 1025 - Helping His Sister Rank Up

Eluard Kai found himself transmigrated to a magical world.

A steward came over and declared that he was now the academy master of the school in front of him before disappearing to nothingness.

“That damn steward said I am now the owner of this place then left me all alone! What the hell am I supposed to teach them anyway?!”

He feared that some prodigious arrogant young master would come over and enroll when he himself didn’t know what he was supposed to do.

“But this is a deserted academy, right? No one should come over here, right?”

Unfortunately, his nightmare came about.

“Academy Master, I am here to enroll in the Heavenly Magic Academy. Please allow my request in behalf of my lackluster talent.”

Eluard Kai almost blacked out until he heard a prompt in his head.

[ A student requests to enter the Heavenly Magic Academy. ]

[ Accept the request? ]

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.

mc gets transmigrated to Fallout New Vegas with the merchant system. let the questionable adventure begin.

Intellectual Villages are old fashioned rural villages recreated with cutting edge technology. Those villages attract the Japanese monsters known as Youkai.

The high school boy Jinnai Shinobu lives in one of those villages and has a Zashiki Warashi living in his house. He tends to run across Youkai with unnerving frequency and this often leads to trouble for him.