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 ★” and “Fire Magic★★” from skill orbs, abilities that 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 he was 10 years old. Along with his precious older sister, Lark, they worked gruellingly in the mines until one day, a rebellion occurred at the mine and Reiji got his hands on a ten-star, a so called “overlimit” skill, called “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 Lark.

“To regain his bond with her, to make her his true sister”, earnestly thinking so, Reiji’s adventure to distant places starts!