After being held in disdain and having his life put in danger, an orphan from the Demonic Cult, Cheon Yeo-Woon, has an unexpected visit from his descendant from the future who inserts a nano machine into Cheon Yeo-Woon body, which drastically changes Cheon Yeo-Woon life after its activation. The story of Cheon Yeo-Woon journey of bypassing the Demonic Cult and rising to become the best martial artist has just begun.