It's a simple story to get to this save, I wanted to create Saitama from One Punchman in fallout 4 in the most legitimate way possible. I personally don't like rolling around the wasteland ludicrously overpowered like the few mods out there. A little research into the legendary prefixes brought me to the Berserker's prefix. 200% damage if you have 0 resistance, and therein is the challenge of this save.

The save starts outside vault 111 with a premade Saitama, his build is 9 strenght, 9 agility and 6 luck and he is holding a Berserker's Powerfist.

Bear in mind your awesome punching powers will gradually lessen the more armor you wear, play it smart and get the first hit.