Bian Seahorse is one of the Marine Generals in the anime and manga series "Saint Seiya," also known as "Saint Seiya: Knights of the Zodiac." He is the guardian of the North Pacific Ocean pillar and serves under Poseidon, the god of the sea. As the Seahorse General, Bian is known for his immense strength, loyalty, and mastery over aquatic-based attacks. He faces off against the protagonists, the Bronze Saints, in their quest to save Athena and stop Poseidon's plans.