Takateru Suga's driving purpose is rescuing his sister Kiyomi, kidnapped by the Koryukai crime syndicate ruling the earthquake-ravaged ruins of near-future Tokyo. He journeys into this lawless city solely to find her, fueling his early decisions.

Skilled in martial arts, he demonstrates combat prowess against syndicate enforcers. On his mission, he unites with unconventional allies: a transvestite martial artist, an ex-military commando turned monk, a police officer, a heavily armed priest, and a combat-trained nun guarding an orphanage. Takateru emerges as the core leader of this group.

A critical revelation surfaces: Takateru is the reincarnation of ancient warrior Soko Kohogi, binding him to a centuries-old war against a demonic force. His allies are likewise reincarnated legendary warriors destined to reignite this battle. Their ancestral enemy, Lord Johakyu, is reincarnated as Koryukai leader Masaru Oshita.

Takateru's personal mission to save Kiyomi collides with this supernatural conflict. He confronts Oshita/Johakyu in a syndicate compound during a chaotic assault marked by gunfire and explosives. This duel resolves both his quest for his sister and his ordained role in the eternal struggle.

His arc concludes with Kiyomi's rescue and the battle against the Koryukai, including the duel with Oshita/Johakyu. These actions fulfill the prophecy of reincarnated warriors facing their ancient foe in this era.