Yumefumi

future setting in a fictional world · police officer protagonist · co-worker support character

Kousai Toshi

虹彩都市

In the near future, where eyes have been mechanized to perceive augmented reality (AR) indistinguishably from reality, there exists a cit… Read more →

In the near future, where eyes have been mechanized to perceive augmented reality (AR) indistinguishably from reality, there exists a city known as 'District Zero'. In this fully AR-compatible city, residents not only enjoy a prosperous life and stimulating entertainment but also benefit from the management of their visual experiences by the AR network called 'ADONIS' making it touted as the safest city in the world.

Within District Zero, the protagonist, Kurauki Shion, works as a first-class investigator for the ADONIS corporation, safeguarding the city from potential threats. However, after becoming entangled in a conspiracy surrounding the 'Swampman Incident' he was assigned to investigate, Shion is demoted to a sinecure position at the OCTA branch.

Amidst the despair, Shion encounters a peculiar situation where his childhood sweetheart Moka, presumed to have died in childhood, appears before him in the form of a child on the AR platform. She exists as an electronic ghost with no physical presence in the real world.

Developer
Key
Length
6–7 hrs

Consensus

no ratings yet

Time to finish

6–7

hours

Platforms

1

win

Curator reviews

awaiting first review

04Tags · ordered by curator score

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03The book

What the text actually does.

Synopsis, structure, content advisories — editorially written, not machine-extracted.

13The Premise

What you’ll actually read.

In the near future, where eyes have been mechanized to perceive augmented reality (AR) indistinguishably from reality, there exists a city known as 'District Zero'. In this fully AR-compatible city, residents not only enjoy a prosperous life and stimulating entertainment but also benefit from the management of their visual experiences by the AR network called 'ADONIS' making it touted as the safest city in the world.

Within District Zero, the protagonist, Kurauki Shion, works as a first-class investigator for the ADONIS corporation, safeguarding the city from potential threats. However, after becoming entangled in a conspiracy surrounding the 'Swampman Incident' he was assigned to investigate, Shion is demoted to a sinecure position at the OCTA branch.

Amidst the despair, Shion encounters a peculiar situation where his childhood sweetheart Moka, presumed to have died in childhood, appears before him in the form of a child on the AR platform. She exists as an electronic ghost with no physical presence in the real world.

14Cultural moment · release cadence

  1. 2025

    Japanese release

    Original edition, shipped by the developer.

16Platforms & editions

Langwin
JA
ZH-HANS
ZH-HANT

Per-platform edition detail (physical / download / fan-patch) ships once catalog.editions lands.

17Cast · anti-spoilered

Character index pending — curator cast sheet not yet written.

18Content advisory

  • Sexual content

    On-screen adult content flagged at the catalog level.

    none
  • Violence

    On-screen violence flagged at the catalog level.

    none
  • Age rating

    Not rated.

    none

19Structural map

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20Memorable

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04What curators say

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Long-form reviews, disagreements made visible, what readers keep returning to.

21Featured reviews

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22Velocity · completion · heatmaps

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Completion rate

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Chapter heatmap

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23Rating distribution

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24Argued takes · where curators disagree

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25Lists featuring this VN

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26Reading group

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27Recent notes

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28Full archive · 0 more reviews

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05Adjacent reading

Where to go from here.

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29Adjacent shelf · by tag overlap · 5 results

31Curator picks

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32Sponsored · publisher partner

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