OVA
Description
John Kyosuke Hiba is a Japanese-American former Green Beret. His service in the Vietnam War ended in disillusionment after his commanding officer's sociopathic actions during the Salvadoran civil war, specifically an order to kill a guerrilla fighter's wife and child which he refused. This event prompted his departure from the army and forged his aversion to unnecessary violence and moral opposition to the wanton taking of human life, despite his combat proficiency.

After leaving the military, he lives in perpetual poverty. He survives on odd jobs like construction work or dog-sitting, sometimes experiencing homelessness. These financial struggles starkly contrast his soldiering capabilities, highlighting his difficulty adapting to civilian life. Professionally, the Japanese government periodically coerces or blackmails him into undertaking hazardous missions, leveraging his specialized combat skills for operations too dangerous or politically sensitive for conventional forces.

His personality exhibits significant eccentricity and inappropriate behavior, bordering on chaotic stupidity outside combat. He displays cloud cuckoolander tendencies, making bizarre facial expressions or proposing inappropriate requests, such as asking a rescued pop idol for oral sex. These antics mask his deeper competence, fitting the crouching moron, hidden badass archetype. He often acts as an idiot hero in daily life, lacking common sense and practical skills, evidenced by his failure to understand a dog's basic needs while dog-sitting.

In combat, however, he transforms into a capable, pragmatic operative, functioning as a one-man army. He demonstrates proficiency in knife fights, bare-handed blade blocks, and survival tactics. His military background enables high-stakes operations, like thwarting nuclear terrorist plots or rescuing hostages, frequently alongside his partner Fudo Masami. Their dynamic is vitriolic yet deeply loyal, with Fudo serving as the only sane man and voice of reason counterbalancing Hiba's impulsiveness.

He grapples with the moral ambiguities of his missions. Many operations conclude with bittersweet outcomes; antagonists—often tragic villains with Freudian excuses—are defeated, but not without collateral damage or revelations of their sympathetic motivations. This complexity sometimes leads Hiba to express empathy toward adversaries, reflecting his internal conflict between duty and conscience.

In an OVA narrative, he is forced out of retirement for a mission involving the retrieval of an AIDS cure from an arms merchant. This operation intertwines with personal history, as the antagonist—his childhood friend Makoto "Phantom" Takamura—represents a dark reflection of his own path. Their shared past in Los Angeles adds emotional weight to their confrontation.

His mixed-race heritage (Japanese-American) subtly influences his outsider status. Physical endurance is a noted trait; he survives extreme torture, including electrocution and having his back carved and skinned by adversaries like Muammar Gaddafi and Shen-Long.