ONA
Description
In the Netflix CG animated adaptation Saint Seiya: Knights of the Zodiac, the character traditionally known as Hyoga is renamed Cygnus Magnus. He is the Bronze Saint who protects the constellation Cygnus the Swan. Raised and trained in the harsh, frozen wilderness of Siberia, specifically in the Oymyakon region of Russia, Magnus learned to harness his Cosmo to generate and control ice and snow. His past is marked by the loss of his mother, which occurred when he was a child, and this tragedy has left a deep, emotional scar beneath his otherwise composed exterior.

Magnus initially presents himself as stoic, aloof, and logical, often appearing cold and unemotional. This demeanor complements his combat style, but it is largely a facade. Beneath the surface, he is a passionate individual who is deeply devoted to his ideals and the people he cares about. He has a rational and analytical mind, and he is not afraid to question the sanity of his comrades' decisions, even when those decisions lead to success, often employing a dry, cynical sense of humor. In battle, his personality shifts to become playful, cocky, and even a little irreverent, as he enjoys the thrill of provoking both his allies and his enemies. Despite this seemingly detached attitude, he is dutiful and, once his loyalty is earned, will defend his chosen side without hesitation.

At the start of the story, Magnus is a conflicted figure. He initially accepts an order from the Sanctuary to assassinate the goddess Athena and the other Bronze Saints, partly due to his personal grievances. However, as he fights alongside Pegasus Seiya, Dragon Long, and Andromeda Shaun, his resolve wavers. His primary motivation becomes protecting Athena, Sienna Kido, and ascending the twelve houses of Sanctuary to save her life after she is struck by a golden arrow. This mission forces him to confront the corrupt leadership of Sanctuary and the powerful Gold Saints who guard the path.

Magnus’s most significant relationship is with his former master, the Gold Saint Camus of Aquarius. The two share a deep history, and their confrontation in the House of Aquarius is a pivotal moment in Magnus's development. To win, he is forced to surpass his teacher by learning the ultimate technique and achieving the level of Absolute Zero, the temperature at which all motion stops. He also shares a strong bond with Andromeda Shaun, whose selfless act to save Magnus’s life during a previous battle creates a profound sense of debt and loyalty between them. His relationships with his fellow Bronze Saints, including Seiya and Long, evolve from reluctant alliance to genuine camaraderie as they fight together against impossible odds.

Throughout the Battle for Sanctuary, Magnus undergoes significant development. He transforms from an assassin following questionable orders to a dedicated defender of Athena. This change is solidified when he abandons his mission from Sanctuary and fully joins the other Bronze Saints in their quest. The journey is a trial that forces him to confront his past, particularly his training under Camus. His battle against Scorpio Milo and the subsequent duel with Camus represent his ultimate test, allowing him to unlock his full potential as a warrior by tapping into the Seventh Sense and mastering the absolute cold that defines his abilities.

As a Cygnus Saint, Magnus possesses a range of supernatural abilities derived from his Cosmo. His signature technique is Diamond Dust, which unleashes a devastating wave of sub-zero cold capable of freezing almost anything. His ultimate goal in combat is to reach Absolute Zero. He also demonstrates superhuman strength, speed, agility, and durability; he can withstand extreme physical trauma and dive into freezing arctic waters without any ill effect. His senses are highly developed, allowing him to see in darkness, track hypersonic movements, and sense the Cosmo of others over vast distances. He can also use his Cosmo to accelerate his own healing and project it as concussive energy blasts.