In a world where everyone receives a skill at the age of 15, Hiraku Matou, born into a family of sword saints, was expected to become one. However, he receives the "Open" skill, deemed useless by those around him. His brother receives a top-tier skill, leading to Hiraku's expulsion. He discovers his skill's true power: the ability to open his status, allowing him to freely allocate skill points, choose cheat skills, and obtain rare items. He becomes the world's strongest adventurer, leaving his family regretting their actions.