"Urban Square - Kohaku no Tsuigeki" is a 1986 OVA set in a futuristic, cyberpunk-inspired world where advanced technology and urban sprawl dominate society. The narrative centers on a young man named Kohaku, a skilled hacker and drifter who becomes entangled in a high-stakes conspiracy involving powerful corporations and shadowy organizations. Kohaku's life takes a dramatic turn when he encounters a mysterious woman named Rie, who is pursued by a relentless assassin known as the "Red Claw." Rie possesses critical information that could expose the corrupt dealings of a mega-corporation, making her a target for elimination.

As Kohaku and Rie form an uneasy alliance, they navigate a labyrinthine cityscape filled with danger, betrayal, and technological intrigue. The story explores themes of corporate greed, surveillance, and the ethical implications of advanced technology. Kohaku's hacking skills and resourcefulness are put to the test as he attempts to outmaneuver the Red Claw and uncover the truth behind the conspiracy. The narrative is driven by a series of intense chases, confrontations, and revelations, culminating in a climactic showdown that forces Kohaku to confront his own moral dilemmas and the consequences of his actions.

The main characters are defined by their roles within the story. Kohaku is a pragmatic yet morally ambiguous protagonist whose expertise in hacking serves as both a tool for survival and a means of resistance against oppressive systems. Rie, on the other hand, is a determined and enigmatic figure whose past is shrouded in mystery, driving much of the plot's tension. The Red Claw, as the primary antagonist, embodies the ruthless efficiency of the corporate world, serving as a relentless force of opposition. The interplay between these characters creates a dynamic narrative that balances action, suspense, and thematic depth, making "Urban Square - Kohaku no Tsuigeki" a notable entry in the cyberpunk genre.