THE HIT MANGA PREQUEL TO OSAMU TEZUKA'S ASTRO BOY CONTINUES! When a malfunctioning robot connects to Six , he must fight to maintain his identity. After encountering a malfunctioning robot, Tenma and the gang decide to diagnose him by linking him to Six's mainframe. But when the two robots' minds start to fuse the team must do everything to save Six from losing his identity before it's too late!