Torrential rain lashes the outside world—cut to the gates of the Shen family compound in Jinghai, where illegitimate son Shen Yuan is humiliatingly cast out. Born with a 'dead meridian,' he's doomed to die young—his inheritance rights and fiancée both stolen by his elder brother Shen Tianci. Just as he collapses, coughing up blood at death's door, 'The Final Manuscript of Elder Shen the Demon at Eighty' surfaces—revealing it was penned by *himself*, eighty years in the future, having ascended to the pinnacle of martial cultivation.