Nano Machine (en)
Nano Machine (en) follows an orphaned boy named Yeo-un who is the ignored son of the supreme leader of the Heavenly Demon Sect. After being viciously attacked by his half-brothers, a future version of his descendant sends a nano machine into his body from the far future. This advanced technology grants him incredible physical enhancements and a digital interface that helps him analyze martial arts, heal quickly, and train at superhuman speeds. The story is about his rise from a bullied nobody into a powerful martial artist, as he uses the nano machine to overcome enemies, gain political power within the sect, and uncover darker secrets. Readers enjoy it for the satisfying progression of an underdog becoming overpowered, the creative fusion of sci-fi tech with traditional wuxia martial arts, and the constant action and strategic battles.