Everyone has 8 frames of "Skills" A world with a "holder".People who live there take in "strengthening their strength " and [fire magic ] and other "skill orbs" in their holders, and gain the ability to survive.The main character, Rage, was still a 10-year-old child, but was working as a slave in a mine where natural gems are produced.He was spending harsh days of mining with his sister’s slave, L’Arc. Ruler >>] is obtained.Rage has become a talented person who has surpassed human intelligence from a helpless slave, but in the midst of a riot, he broke up with L’Arc, who was the only one who could forgive his heart.I want to see L’Arc again.I want to regain the bond with her and become a true sibling-with a heartfelt wish, Rage’s far-reaching adventure begins !!