Hyou, biological elder brother to Kenshiro and fellow descendant of the Hokuto bloodline, recognized Kenshiro's destined significance even during his infancy. He entrusted the young Kenshiro to Raoh and Toki, pledging to one day teach him ancestral secrets by mastering Hokuto Ryuken in the land of Shura. During his training under Jukei, Hyou's inherent kindness was viewed as an impediment; Jukei erased Hyou's memories using specialized techniques to remove this perceived weakness. Stripped of his past, Hyou aligned with Kaioh's mission to impose order upon Shura. As the "Second General," he governed with ruthless efficiency in battle yet demonstrated benevolence toward civilians. Kaioh covertly manipulated Hyou's pressure points to prevent memory restoration and reinforced control by making Hyou believe Kaioh and Han were his only brothers. To further bind Hyou, Kaioh orchestrated the murder of Hyou and Kenshiro's sister, Sayaka, framing Kenshiro for the crime. Consumed by manipulated rage, Hyou confronted Kenshiro, unaware of their true bond. Shachi intervened in their conflict, successfully restoring Hyou's memories where Jukei had failed. Reunited, Hyou disclosed the location of their ancestors' sacred tomb, enabling Kenshiro to learn techniques essential for confronting Kaioh. Seeking redemption, Hyou allied with Bat to rescue Rin and challenge Kaioh's tyranny. During Kenshiro's climactic battle against Kaioh, Hyou refused to deliver a fatal blow, instead expressing forgiveness for Kaioh's atrocities and attributing the suffering to his own past weaknesses. This act led to reconciliation before Hyou succumbed to his wounds in Kaioh's arms; Kaioh subsequently entombed them both within a volcanic eruption. Hyou's combat style mirrored Hokuto Shinken but incorporated distinct applications of his fighting aura. He projected destructive energy spheres, generated defensive barriers, and executed wide-area attacks like the Jikai Rashi, ensnaring opponents in an energy web for precise strikes. His mastery of Hokuto Ryuken allowed him to manifest aura hurricanes such as the Maei Soukijin, capable of disintegrating adversaries. His name, derived from the Japanese word for "leopard," symbolized his lethal grace. His narrative encompassed themes of loyalty, betrayal, and the persistent struggle between innate compassion and imposed brutality.