"Kowloon Generic Romance" is set in a futuristic version of Kowloon Walled City, reimagined as a densely populated, labyrinthine urban environment. The story revolves around Reiko Kujirai, a real estate agent working in the city, and her colleague Kudou, with whom she shares a complicated past. Reiko is a pragmatic and somewhat detached individual, while Kudou is more emotionally expressive and harbors unresolved feelings for her. Their interactions form the emotional core of the narrative, blending elements of romance, mystery, and existential inquiry.

The plot unfolds in a world where the boundaries between reality and illusion are increasingly blurred. Reiko begins to experience strange, fragmented memories that suggest her current life may not be as it seems. These memories hint at a past relationship with Kudou that neither of them can fully recall, raising questions about the nature of their identities and the world they inhabit. As Reiko delves deeper into these anomalies, she uncovers unsettling truths about the city itself, which appears to be a constructed reality designed to manipulate its inhabitants.

The series explores themes of memory, identity, and the nature of human connection within a dystopian framework. The city of Kowloon serves as both a physical and metaphorical backdrop, its claustrophobic architecture and chaotic energy mirroring the characters' internal struggles. Supporting characters, such as Reiko’s clients and coworkers, add layers to the narrative, each contributing to the overarching mystery of the city’s purpose and the true nature of its residents.

As the story progresses, Reiko and Kudou’s relationship becomes increasingly central, with their shared history and fragmented memories serving as a catalyst for uncovering the city’s secrets. The narrative balances moments of introspection and emotional tension with a steadily building sense of unease, as the characters grapple with the possibility that their lives and emotions may be artificially constructed. The series maintains a deliberate pace, allowing the mystery to unfold gradually while keeping the focus on the characters’ evolving dynamics and the enigmatic world they inhabit.