Nanomachines

Having gained self-awareness while still in my mother's belly, I realized that this was my chance. Being born was the first step. Then at one years old, I would have a college degree, and at five, I would be a billionaire. I didn't care that I remembered nothing of the past. This being a magical world, and with lots of smart tech, too, I'd catch up in no time, wouldn't I?

I am a grandson, and I have nanomachines inside me. What did you expect? The surprise appearance of my superpowerful great-grandmother has forced me to change my plans. One word from her is enough to destroy my beloved family! She is strong, my great-grandmother, and feared by many! But not by me. For I am Michael Kaiser, and my talent is adaptation. I'll show you, old woman, how strong we rugrats can be! Time to get into training!

With the help of my great-grandmother's familiar, Baal, I overthrow a reign of tyranny at my preschool. Kids need toys! Power to tots! That done, I finally have time for some serious strength training! The 'Core Snatching' skill I learned from the deadly sin Envy comes in useful here. It lets me devour the very essence of a freshly killed being, and Baal suggests starting with demons—creatures that are beyond salvation. It's a good plan for enhancing my strength. And it works!

Watch out, teachers! On your guard, classmates! Take cover, school! I made it out of the Abyss, bringing a relative of mine back with me and acquiring great power along the way! Now I'm ready for the next phase of my life. Experimental elite school, here I come!

Thankfully, the divine judgment passed by the heavenly virtue Justice herself went my way, and I avoided being incinerated! Now I can get back to a simple life as a magical first-grader, right? Yeah, right. While monsters in search of a ruler are stirring in the forests, a mysterious prowler going by the name of Mr. Hyde is at large in the city. There's danger everywhere, and nowhere to hide. And who has to deal with all this mess? Who else but yours truly, the nanomachine-powered magical munchkin! Will I ever get a break?!

Both the attempted invasion by the forces of Hell and Mister Hyde's rampage have been successfully put down. Not by me alone, I'm glad to say! We saved the Earth together. Hooray! Now for a long-planned holiday! It's a pity that I'm the only one who ended up in New Moscow. I'm being recruited by a secret bureau set up by the Emperor. Now I have to save the planet from a descendant of Lucifer while at the same time learning to master new demonic powers.