The coastal city of Yamabuki falls under the tyrannical rule of Principal Kurobe, a sadistic dictator who transforms the local high school into a fortress of fear and oppression. Alongside his heavily armed paramilitary faculty, Kurobe implements brutal disciplinary codes to crush the students' spirits, especially targeting the independent and rebellious spirit of the youth. The faculty enforces absolute obedience, punishing even minor infractions with grotesque physical torment and psychological humiliation, plunging the entire school into a state of perpetual terror.Among the broken student body suffers Mayumi, a timid, kind-hearted girl subjected to relentless bullying by the
student council and faculty alike. Pushed to the brink of despair, Mayumi secretly invokes the legendary savior of justice, Kekko Kamen. Instantly, the crimson-masked warrior appears. Clad in nothing more than her iconic red mask, matching boots, and cape, Kekko Kamen confronts the cruel
Vice Principal and his thugs. Utilizing a bizarre and unorthodox martial arts style combined with high-flying acrobatics and comedic elements, she effortlessly dismantles the brutal enforcers, restoring a glimmer of hope to the oppressed students.Enraged by this humiliation, Principal Kurobe escalates his campaign, kidnapping Mayumi to lure the masked heroine into a fatal trap within the school’s heavily fortified basement dungeon. Kurobe unleashes his ultimate weapon: a mutated, superhuman warrior engineered specifically to counter Kekko Kamen's unique fighting techniques. As the final showdown begins, Kekko Kamen finds herself overpowered by the brute strength of the monster and the cruel traps set by the principal.Refusing to yield, Kekko Kamen taps into her inner reservoir of righteous indignation. Channeling her fierce dedication to justice and the protection of the innocent, she breaks free from the restraints. With a blindingly fast flurry of comedic yet devastating maneuvers, she destroys the monstrous creation. Cornered and stripped of his armed forces, Principal Kurobe attempts a cowardly escape, but Kekko Kamen apprehends him, delivering a swift and humiliating punishment that permanently ruins his dictatorial authority.In the aftermath, the tyrannical regime collapses. The students rejoice as the oppressive faculty is driven out, and the school is returned to its rightful occupants. Mayumi, now empowered by the courage she witnessed, stands proudly alongside her peers. Having successfully restored peace, freedom, and joy to Yamabuki High School, Kekko Kamen quietly vanishes into the wind, leaving behind a legacy of liberation and the enduring promise that she will always return whenever tyranny dares to rear its ugly head.