Cosmo Warrior Zero is a Japanese science fiction anime and manga series created by Leiji Matsumoto. It follows a space-age conflict involving the legendary warrior Zero, who is sent on a mission to confront the cyborg version of Captain Harlock and restore order amid war and destiny. The series is known for its connection to Matsumoto's broader Space Pirate Captain Harlock universe and for its dramatic, classic retro space-opera style.