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.

Have you ever felt like there was something inside of you pushing your actions? A dormant beast, so to speak. I know it sounds crazy. But, that’s the best way I could describe how I’ve felt for a long time. I thought it was normal, some animal part of the human brain that lingered from evolution. But, this is the story of how I learned I wasn’t exactly human, and there was a world underneath our own where all the things that go bump in the night live. And, that my beast was very real indeed.

In a world where mages and monster grow from cultivating mana, Isaac joins the class of humans known as mages who absorb mana to grow more powerful. To become a mage, he must bind a mana beast to himself to access and control mana. But when his mana beast is far more human than he expected, Isaac struggles with the budding relationship between the two of them as he prepares to enter his first dungeon.

When people started to develop superpowers, the world changed forever. Me? I wasn't one of the lucky ones with powers. So I had to develop more mundane skills, skills which have taken me across the globe on dangerous missions. But there are some missions I’ve always had to refuse. I've never been able to take on a super. They're just too powerful. They're gods, whereas I'm just a man, even with all my knowledge and training. All that changes after I discover my dad's secret research project.

Now I've been taken to a demiplane between worlds where Dracula rules supreme, and all he wants is to... start a school for vampires? It turns out the next generation of vampire is built differently, and I'm in on the ground floor of that new enterprise. What's more, I have a unique suite of abilities that helps me further stand out from the crowd. So much, in fact, that I've started attracting the attention of multiple gorgeous women.