A young thief named Bart left his village to ease the burden on his adoptive mother Toyo, who raised many orphans. Imprisoned for trying to steal food, he encountered Kenshiro. Witnessing Kenshiro's power, Bart became his self-appointed sidekick, driven by self-interest and survival in the wasteland. Toyo's death marked a turning point for Bart. Kenshiro's struggles and the brutal world catalyzed his maturation from a brash opportunist into a more responsible person. Through his travels, he gained rudimentary combat skills and a limited grasp of Hokuto Shinken techniques, though never becoming a formal martial artist. After a timeskip, Bart emerged as the adult co-leader of the Hokuto Army alongside Rin, resisting the Celestial Emperor's tyranny. He demonstrated strategic leadership and resourcefulness, employing mechanical skills to operate vehicles like a dune buggy for traversing the wasteland. His inherent trickiness became an asset in dangerous situations. Bart developed deep affection for Rin during their shared leadership. When Rin was afflicted by the Shikanhaku pressure point, making her fall in love with the first person she saw, Bart prioritized her happiness over his own feelings. He later used his pressure point knowledge to induce amnesia in Rin, hoping she would build a life with Kenshiro. In the conclusion, Bart impersonated Kenshiro to confront the vengeful enemy Bolge. He was captured, tortured, and mutilated during this confrontation. Mortally wounded, Bart summoned his final strength to kill Bolge. This sacrificial act aimed to protect Kenshiro and Rin, and he urged them to be together as he died. Kenshiro later revived Bart using Hokuto Shinken techniques. Bart ultimately lived out his life with Rin as his wife. Bart's journey illustrates a progression from self-preservation to self-sacrifice, marked by his growth into a dedicated leader and unwavering loyalty to his companions.