Libra Dohko, known as the Old Master, survived the 18th-century Holy War against Hades alongside Aries Shion. Athena then tasked him with guarding the seal imprisoning Hades' 108 Specters at China's Five Peaks of Mount Lu. She granted him the "Misopethamenos," a longevity technique slowing his heartbeat to one beat per day. This extended his life over 243 years, causing his physical form to appear as a diminutive elderly man. During this vigil, he raised an orphan girl named Shunrei and trained Dragon Shiryu as his primary disciple, imparting martial wisdom and philosophical teachings. In his youth, Dohko displayed an impulsive and rebellious personality, often acting on instinct. As a Bronze Saint trainee, he killed a protective mother lion, inadvertently orphaning two cubs later adopted as guardians of the Leo Temple. After promotion to Libra Gold Saint, he and Shion attempted to intercept Hades' incarnation, Alone, but were thwarted by Pegasus Tenma. Centuries of post-war meditation mellowed his temperament into a serene, philosophical demeanor, though his rejuvenated form during the later Hades conflict revealed his youthful vigor tempered by experience. Dohko's combat abilities center on dragon-themed techniques, primarily the "Rozan Hyakuryu Ha" (Mount Lu Hundred Dragons Force), unleashing torrents of draconic energy. As the sole guardian of the Libra Cloth, he oversees its twelve weapons—swords, shields, nunchaku, and others—deploying them only when absolutely necessary. His mastery of the Seventh Sense enables light-speed movement, and he later achieves the Eighth Sense to enter the Underworld alive. During Poseidon's conflict, he authorized the Libra Cloth's use to destroy the Seven Underwater Pillars. Sensing the Specters' seal breaking in the Hades arc, Dohko traveled to Sanctuary. He reignited the Fire Clock to signal the invasion and confronted Shion, who appeared as Hades' ally. Their battle led Dohko to relinquish Athena's longevity gift, restoring his youthful body to fight evenly. After Shion's death, he guided Shiryu, Hyoga, and Shun into the Underworld, revealing the necessity of the Eighth Sense for survival. At the Wailing Wall, he deduced that only the combined power of all twelve Gold Saints' Cloths could destroy it, orchestrating their collective sacrifice to breach the barrier. Spin-off media expand his background. "The Lost Canvas" depicts him training under a dragon-ascended master in China before becoming a Saint. He later mentored Pegasus Tenma and died shielding allies from Hades' sword during an assault on the deity's castle. In "Next Dimension," his teenage self features as a Bronze Saint promoted to Libra during the 18th-century war, partnering with Shion to pursue Alone.