TV-Series
Description
Hanako Saitō is a prominent character from the manga series Ninja vs. Gokudo, recognized by the alias Ninsatsu Bancho, which translates to Ninja Slayer Leader. He is introduced as a formidable and iconic figure within the story's world.

In terms of background, Hanako Saitō is one of the Eight Gokudo of Destruction, a group of powerful rogue fighters. He is a muscular giant with brown skin, and his appearance is distinguished by his choice of attire: a pure white suit paired with glasses. An elaborate tattoo adorns his back, depicting a right fist breaking through the clouds and raised high towards the heavens. His history is deeply rooted in the post-World War II era, with his presence first confirmed in Hiroshima immediately after the war. Since that time, he has been relentlessly hunting and killing ninjas across Japan, primarily in the western regions of the country. His reputation among ninjas is so fearsome that he is spoken of like a monster from a bedtime story, an elusive and unavoidable disaster. He is celebrated as the strongest of the Gokudo, notable for being the only one who consistently slays ninjas without relying on Hell's Coupon enhancements, which are typically used to boost power.

Hanako Saitō's personality is defined by an overwhelming drive for combat. He openly declares that killing ninjas is his life's purpose and single-handedly takes on ninjas that even other Gokudo fear. He is a battle maniac who relentlessly pursues strong opponents, showing no mercy to anyone who earns his wrath. His philosophy on fighting is strict; he despises when luck determines the outcome of a battle. When he accidentally developed his signature technique, the Shoken, which led to a victory, he was initially furious, feeling as though he had been defeated by luck. However, he later came to see the technique in a new light, declaring that it illuminates the Gokudo's future. He is equally harsh towards those he considers weak or failures, once delivering a finishing blow to an allied Gokudo who was dwelling on past defeats, stating that losers should just hurry up and die. Despite his savage battle lust, he displays a contrasting side when following the orders of Kiwami Kimura, showing surprising obedience and calmness.

His primary motivation is the eternal pursuit of a worthy fight. As a character driven to challenge the strongest opponents, he is even willing to extort others in true Gokudo fashion just to provoke a battle with someone he recognizes as strong. This drive places him at the center of the story's central conflict.

His role in the narrative is largely defined by his status as an archenemy. Hanako Saitō is responsible for the deaths of two key figures: Jakiju Koryu, the biological father of the brothers Sako and Uryu, and their adoptive father, Hasegawa Zakura. As a result, the two brothers have spent many years searching for him to exact revenge. He is also accompanied by Boxer Joe Adachi, a character frequently mentioned in relation to him.

The character exhibits a distinct development in his perspective on his own power. While he initially rejected his Shoken technique because its accidental nature felt like a tainted victory, he later acknowledged its value as something that could guide the Gokudo's future, indicating a subtle evolution in his thinking.

Concerning his notable abilities, Hanako Saitō fights bare-handed, employing a brutal brawling style. His physical fortitude is otherworldly; he can withstand the shock of massive explosions without the aid of enhancements, and his body is so tough that it is impervious to powerful techniques such as the Hasegawa brothers' Ice Emperor Thunder God Descent. One of his key physical traits is that he lost the pinky fingers on both hands during his fight with Hasegawa Zakura, a sacrifice that ultimately led to the development of his unique skill. His signature Gokudo technique is the Shoken, or Illuminating Fist. This secret technique allows him to generate a powerful explosion at the exact moment his massive fist makes impact with a target. He is described by another character, Zanzo Kazai, not merely as a Gokudo, but as a unique being who transcends humanity.