Hajime Saito commands the Shinsengumi’s 3rd Division as a swordsman of rare skill, wielding his blade left-handed in the iai style to exploit the unpredictability of his strikes. Born in Edo, his unflappable composure and precise, formal speech mask a strategic mind honed through espionage, cementing his loyalty to Toshizou Hijikata and the Shinsengumi’s cause. His first encounter with Chizuru Yukimura—rescuing her from an assailant—sparks a mentorship where he trains her in combat, preparing her for patrols. Repeatedly intervening during pivotal moments, he shields her from danger in clashes at Ikedaya and against Itou Kashitarou’s forces, balancing stoicism with quiet gestures of reassurance that reveal a guarded concern for her welfare. As the Shinsengumi fractures, Saito embraces covert operations, prioritizing strategic gains over personal acclaim. The capture and execution of Kondou Isami strain loyalties, culminating in Saito openly opposing Hijikata’s faltering leadership as the latter’s health declines—a defiance that underscores his pragmatism and dedication to preserving the group’s integrity. Dispatched to train Aizu Domain soldiers, his Western garb and unconventional sword placement initially provoke skepticism. Yet battlefield ingenuity—such as orchestrating a tactical retreat to preserve lives—earns their trust. At Bonari Pass, he stands with Aizu warriors to cover Hijikata’s retreat, hoisting the Shinsengumi banner before a solitary charge into enemy lines, leaving his fate unresolved. Decades later, he consumes the Water of Life to transform into a Fury, amplifying his strength at the cost of his humanity. This choice reflects his unyielding allegiance to the Shinsengumi’s legacy, even as its remnants dissolve. Encounters with the demonic Kyuuju Amagiri expose a nuanced rivalry, marked by mutual respect for the sacrifices borne of power. Visually distinct with indigo hair swept into a side ponytail and sharp features framed by parted bangs, his piercing blue eyes remain steady beneath shifting attire. He transitions from a traditional black kimono to Western military garb, mirroring the era’s shift, while his left-handed sword placement persists as a testament to his unconventional efficacy. Historically, Saito’s real-world counterpart survived the Bakumatsu turmoil, adopting the name Fujita Gorō and serving in the Meiji-era police—a contrast to the anime’s ambiguous conclusion, blending fact with narrative invention.