Kurando Sekine is the primary antagonist of the live-action film Sukeban Deka: Counterattack of the Kazama Sisters. He is a young and ambitious politician, aged twenty-five, who has already made a name for himself as an elite figure in international judicial circles. In the story, he serves as the director of the Juvenile Security Bureau, a government organization established to combat youth crime through aggressive and uncompromising means. Sekine oversees a squad of student agents, equipping them with triple-bladed yo‑yo weapons that reflect the severity of his methods. Under his leadership, the bureau carries out summary punishments and physically harsh crackdowns on delinquents, often targeting even minor or vulnerable offenders.

Sekine’s personality is marked by cold pragmatism and a hidden fanaticism. He presents himself as a committed public servant taking necessary measures against crime, but beneath that surface lies a ruthless disregard for due process and human life. His true motivation is not the preservation of order but the overthrow of the Japanese government. The heavy-handed anti-crime campaign he directs is ultimately a smokescreen for a coup d’état, designed to destabilize the country through orchestrated terrorist attacks that he then blames on a fringe group of outcasts. This duplicity reveals a calculating, power-hungry nature that will sacrifice anyone to achieve his aims.

Within the narrative, Sekine is the central force driving the conflict. After the events of the television series Sukeban Deka III, the Kazama sisters work for the Juvenile Security Bureau, but Yui Kazama soon rebels against Sekine’s excessive zeal and resigns. Her defection, combined with suspicions from the Dark Director Kurayami, sets the investigation in motion. A subordinate named Yoda steals a disk containing evidence of Sekine’s conspiracy, but is fatally wounded while delivering it, passing the information to the Kazama sisters. Sekine then escalates his plans, using his influence to neutralize the Dark Director and unleashing indiscriminate terror across Tokyo. His ultimate scheme is to board a plane and execute the final strike against the state, forcing the Kazama sisters to ally with the Outcast League and their disillusioned leader Kei to stop him.

Kurando Sekine’s key relationships are defined by authority and opposition. He commands the loyalty of his student agents, particularly Tohko Agawa, who carries out his orders with fanaticism. His relationship with Yui Kazama is one of ideological clash: where she draws a line at hurting the innocent, he regards such restraint as weakness. With the Dark Director, he shares a history tied to the Sukeban Deka program, but Sekine ultimately betrays that structure to pursue his political ambitions. He has no genuine allies, only subordinates and enemies.

As the film progresses, Sekine’s development is not one of moral change but of full exposure. His public persona crumbles as his true intentions surface, yet he remains resolute in his treason until the very end. He does not waver or seek redemption; when cornered, he attempts to carry out his final act of destruction. This unwavering conviction underscores his role as a cautionary figure about the dangers of unchecked power masked as righteousness.

In terms of notable abilities, Sekine is not a physical combatant like the youth he controls, but his strength lies in political manipulation, strategic planning, and the exploitation of institutional authority. He uses the Juvenile Security Bureau’s resources to create a private army of student detectives and to orchestrate large-scale deceptions. His triple-bladed yo‑yo weapon, shared with his agents, symbolizes his willingness to employ lethal force in the name of order. The character stands as an emblem of corrupted state power, making him a formidable intellectual and psychological threat rather than a direct physical one.