Princess Asera flees from Abaddon, the demon king of the comet Hercules, and arrives on Earth. However, Abaddon's minions, the Bedraman, come to Earth to kidnap her. Meanwhile, Na Ban Jang's investigation team and Dr. Han's family are spending a leisurely time fishing. A box full of gold bars gets caught on Na Ban Jang's fishing line. The moment they check the gold inside, they are attacked by a group of unknown assailants, the box is stolen, and Na Hee disappears. Meanwhile, Princess Asera engages in a gunfight with the Bedraman who are pursuing her... Unfortunately, Na Hee is killed by the Bedraman. Kang Hyuk, who came here to find Na Hee, transforms into Moon Mask and fights the Bedraman, but he is outmatched and finds himself in danger. Barely escaping danger with the help of Princess Asera, Moon Mask hears the story of the search for a space warrior to defeat the alien demon king Abaddon. Princess Asera and Kang Hyuk develop superpowers and create a powerful Moon Mask robot. Finally, they defeat the Bedraman and have a final showdown with the alien demon king Abaddon. Princess Asera and Moon Mask ultimately defeat Abaddon and protect the peace of the universe.