Cheon Yeo-Woon, an orphaned prince of the Demonic Cult, is constantly bullied and looked down upon because of his low status. His fate changes when a mysterious descendant from the future suddenly appears and injects him with a powerful nanomachine that merges with his body. The nanomachine grants him unparalleled learning abilities, allowing him to master martial arts at an incredible speed. Armed with advanced technology and unwavering determination, Cheon Yeo-Woon rises through the ranks of the Murim world, seeking revenge against those who wronged him while uncovering the secrets behind his destiny.