A fantasy adventure about bonds forged with people in a different world. The setting is a world, where everyone has eight skill slots. In these slots people can put skills like “Strengthen arm (1 star rarity)” and “Fire Magic (2 star rarity)” from skill orbs, abilities which prove extremely useful for survival. The total amount of stars your skills have can never exceed your slots. Our protagonist Reiji, worked as a slave that mines skill orbs, until 10 years old. Along with his precious older sister, Larc, they worked gruellingly in the mines until one day, where the chance for rebellion occurred at the mine and Reiji got his hands on a ten-star, a so called "overlimit" skill, also known as World Ruler. Reiji went from a powerless slave to having an ability that surpassed human limits, but in the chaos of the revolt, he was separated from the only person dear to him, his sister Larc. “To regain his bond with her, to make her his true sister”, earnestly thinking so, Reiji’s adventure to distant places starts!