The protagonist, an unpopular company s*ave, wakes up, and find himself reincarnated as Rex, a “villainous noble who ruined in the early stages of the game” in his childhood. The reincarnated Rex is a young boy with the weakest job, a “Support Magician”, and is ridiculed by commoners as “incompetent, who can’t even use a knife” and similar insults. His life was definitely in a hard mode. However, the reincarnated protagonist is determined to live his life as he pleases, and works hard to train in swordsmanship and magic, making full use of his abilities as a support magician, the weakest profession. Then, before he knew it, he had acquired “sword skills that surpass the hero” and “magical power that exceeded that of saints,” and was worshiped as an “incarnation of God” by beautiful heroines such as the maid, stepsister, and princess (saint). In order to maintain a happy life with the heroine who adores him, the protagonist unknowingly tramples over those who hinder him, and creates an unrivaled harem. Later, he became unmatched even by the hero (protagonist) and the demon lord (last boss), and the “Support Magician” Rex rose to fame throughout the world as a “hero”