In This Wonderful World, I Become a Construction Maniac

Title: In a Wonderful World, I Become a Construction Maniac

Synopsis: I transmigrated into KonoSuba. Kazuma was still chopping vegetables, and Aqua was slacking off. I picked up a hoe and started digging the foundations, and the System popped up a Construction Maniac passive skill. That night, the construction site's boss begged me to stay. I counted my eight thousand Eris and thought: The Demon King? I'll finish building this sewer first. In the distance, the rumble of Explosion magic rang out.