Dragon Shiryu serves as the Bronze Saint of the Dragon constellation, renowned among Athena's protectors for exceptional defensive power and wisdom. Trained at China's Five Old Peaks under Libra Gold Saint Dohko, he mastered cosmic energy (Cosmo) manipulation. This mastery yielded techniques like Rozan Shou Ryuu Ha, which bears a vulnerability exposing his heart momentarily during use. His life force links directly to a dragon motif on his back; the motif fades as his Cosmo wanes, signaling mortal peril. During the Hades Chapter - Sanctuary arc, Shiryu intervenes against Specters attacking his master's residence and Shunrei, defying Athena's non-intervention order out of loyalty to Dohko. Blind from prior battles, he defeats three resurrected Saints—Perseus Algol, Lycaon Phlegyas, and Basilisk Sylphid—simultaneously through sensory adaptation and tactical precision. Confronting Phoenix Ikki at Sanctuary, Shiryu prioritizes duty over friendship, engaging him despite Ikki's warnings. He witnesses Dohko's rejuvenation and aids against the traitorous Shion, learning the advanced Rozan Hyaku Ryu Ha technique. Though blind, Shiryu executes this move to counter Shion's assault after Dohko permits his involvement. Shiryu later aids in neutralizing twin Athena Exclamation collisions alongside Capricorn Shura's spirit, preventing catastrophic damage. When Saga mortally wounds Athena, Shiryu visibly manifests grief yet channels his rage into Sanctuary's continued defense. Venturing into the Underworld paired with Cygnus Hyoga, he argues the strategic advantage of his blindness against sensory-based foes. Shiryu volunteers as rear guard at the Hyperdimension portal, deploying Rozan Hyaku Ryu Ha independently to annihilate pursuing Specters, enabling his allies' advance. During the Elysium conflict, Shiryu dons a God Cloth blessed by Athena's blood, contributing to Hypnos' defeat alongside Hyoga and confronting Hades directly. Post-Hades, Shiryu retires to China with Shunrei, adopting a son named Shoryu. He declines further combat until Hyoga and an assault by Angel Tohma compel his return. Traveling to the 18th century via Chronos' portal, Shiryu receives endorsement from that era's young Dohko as the future Libra Gold Saint successor. In the spin-off *Saint Seiya Omega*, Shiryu loses all five senses following conflicts with Mars but mentors his biological son, Ryūhō, as the new Dragon Saint. Post-recovery, he adopts the Libra Gold Cloth during the Pallasite war, sacrificing himself temporarily to empower Ryūhō. His techniques evolve: Rozan Kou Ryu Ha, a life-risking atmospheric incineration attack used against Shura, contrasts with Excalibur—manifested after inheriting Shura's spirit—which projects cosmic energy as a blade. The Rozan Hyaku Ryu Ha, learned during Dohko's battle, eliminates his former technique's cardiac vulnerability.