Dream Hackers: Community-shou-tachi no Real Cheatopia

is the first volume of the Dream Hacker light novel series, written by Kinugoshi Deguchi and Illustrated by Ruroo. It was released under the Dengeki Bunko Imprint in January 2017.

Synopsis
My name is Nariyoshi Inusuke. The best brain hacker in the world. Brain hack is to invade the target brain through a bioimplant and deprive the brain of administrator authority. Once you've deprived you of administrator privileges, you have full control over that person-in a pre-modern way, you can be a slave.

I've been active since the dawn of Brain Hack, and I'm afraid in that world, but ... at that time, I was just a tiny junior high school boy who hadn't even installed Partizan yet.

(source: Dengeki Bunko Official Website - Translated)