Five hundred years of fighting demons and humanity has been pushed to the brink of extinction. As the last bastion of the remaining humans is shattered, Bran Heros, the Wandering King, decides to enact a last ditch effort. He’s going to send his soul back in time to two years before the demon invasion comes to earth. This time when the demons first come he’s going to be waiting. He might not be as strong as he was in his past life, but he has something far more important.

Growing up, she was the girl down the street. Even then, I knew she was different. She was tough, rough, and had the strength to stop a speeding car with her bare hands. We were as thick as thieves, sharing every adventure. Then one day she revealed a secret. She wasn't from Earth. She was from a distant place called the Arcadia Multiverse. Her people lived under the rule of a god-like entity known as the System. That System had its gaze fixed on Earth. And it was only a matter of time before it came for us.

Arden was left in the village by a dying mage, who never returned. With no way out of the village on his own, he had always held onto the hope that one day his magic would awaken and give him access to his spheres. But he’s about to turn eighteen and it’s never come. Instead, he’s settled into his lot as a sarcastic and quick-witted innkeeper. That all changes one night when his old flame, who escaped the village to become a mage’s anchor, returns. Ard’s life is about to go through some dramatic changes, and he’s not ready for them.

My life was far from perfect, revolving around a dead-end school and caring for my sickly mother. It’s not until a chance encounter with a beautiful and mysterious blonde that I learn the truth about myself. You see, I’m not just an ordinary human. I’m a demon lord, potentially one of the strongest that’s ever lived. My mysterious new friend introduces me to the Academy for Demonic Education, where I learn about my emerging powers alongside my gorgeous classmates, including a shy brunette trying to find her voice as well as a famous shifter princess.

The Dungeon is a place of magic and mystery, a vast branching, underground labyrinth that has changed the world and the people who dare to enter its depths. Those who brave its challenges are rewarded with wealth, fame, and powerful classes that set them apart from the rest.