That Highschool Student Will Become The Demon Lord Volume I

Kurogane Akira lives an unremarkable life, keeping to himself and avoiding attention. That changes the moment time stops. A man named Raizen appears before him and reveals a truth Akira was never meant to know. His father was not human. What he inherited is something far beyond ordinary, and it is already beginning to awaken. Drawn into a hidden world known as Vareth, Akira steps into a reality where strength decides everything. There, he begins to train, to fight, and to understand the power within him. Along the way, he encounters others walking their own paths, including a quiet and sharp-minded mage whose presence slowly becomes difficult to ignore. But something is off. The deeper Akira goes, the more the world around him begins to feel wrong. Subtle changes. Unnatural reactions. As if something is watching and waiting. Back in his normal life, Aoi Shinomiya begins to notice the changes in him. The more she observes, the harder it becomes to look away. And when she finally makes a decision of her own, the line between the two worlds begins to blur. Because some things are not meant to remain hidden. And once they begin to surface, they cannot be stopped. A quiet beginning. A hidden power. A world that is starting to respond.