In a neon-lit, highly technologized future Japan, cybercrime officer Kaori Nakamura investigates the suspicious self-destruction of a corporate nanny robot, aided by the hologram of her deceased brother, while navigating societal pressures and a parallel case of a missing teenager obsessed with a pop idol. The story explores themes of artificial intelligence, surveillance, celebrity culture, and social inequality, raising questions about trust in technology and the erosion of genuine human connection.

Reader Review Summary

Set in a futuristic, cyberpunk-inspired Japan, the novel follows Kaori Nakamura, a police officer in the cybercrime division, as she investigates the apparent self-destruction of a corporate nanny robot in front of a child. The incident raises questions about whether a robot can possess motives or commit intentional acts, such as self-destruction. Alongside this central mystery, Kaori is drawn into the search for Minako, the teenage niece of her partner, who disappears after attending a concert by a popular idol. The narrative explores a society dominated by advanced technology, including robot caregivers, holograms of deceased individuals, autonomous vehicles, and pervasive surveillance, while also delving into issues such as social control, the influence of idols on youth, and gender discrimination. Kaori receives assistance in her investigation from Yutarō, a hologram of her deceased brother, adding a personal and technological dimension to the story.

Readers appreciated the detailed and immersive world-building, particularly the depiction of a technologically advanced Japan with elements like robot nannies, hyper-realistic holograms, and societal surveillance. The integration of cyberpunk and crime genres, as well as the inclusion of multiple plot threads, such as the investigation and the missing teenager, were highlighted as strengths. Many found the exploration of contemporary issues—such as the impact of celebrity culture on youth, the ethical implications of artificial intelligence, and societal hierarchies—engaging and thought-provoking. The protagonist, Kaori, was praised by some for her complexity, resilience, and the way her personal struggles were woven into the narrative. The fast-paced plot, intricate intrigue, and the author's evident research and knowledge of technology and Japanese culture were also noted as positive aspects.

Criticisms focused on the perceived superficial treatment of certain themes, such as gender discrimination and the psychological depth of characters, with some readers finding these elements underdeveloped or unconvincing. The writing style was described by several as simplistic or awkward, with dialogue occasionally coming across as unnatural or stilted. Some felt that the book was too short to fully develop its world and characters, suggesting that additional length could have allowed for deeper exploration. The role of the hologram brother in the investigation was seen as minimal, and the resolution of certain plot points, including the handling of a character's death, was viewed by some as abrupt or lacking emotional depth.

The book was published in March 2025 and is classified under science fiction, cyberpunk, and Polish literature. It has received an average reader rating of 3.55 out of 5 from 20 ratings and 8 full reviews. The narrative incorporates a blend of crime investigation, technological speculation, and social commentary, with a particular focus on the intersection of human and artificial relationships. The setting draws heavily on Japanese culture and aesthetics, and the story raises questions about the boundaries between human and machine, the risks of technological dependence, and the persistence of social issues in a high-tech future.