The Strongest System Supplier

Are you humiliated by being counterattacked by useless people? Are you sad and angry about becoming a stepping stone to genius? As a cannon fodder who died after appearing in just two episodes, are you unwilling to do so? Don't worry, I've got everything covered! As the only system supplier in all the worlds, I can customize various portable systems for you, allowing you to reach the top of your life. Young man, it's time to feel proud! Young man, it's time to counterattack and counterattack! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.