yumefumiBeta

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 city known as 'District Zero'. 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
Platforms
win
Languages
JAZH-HANSZH-HANT

Consensus

-

no ratings yet

Time to finish

6-7hrs

catalog estimate

Platforms

1

win

Curator reviews

-

awaiting first review

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Available translations.

Sourced from VNDB. Click any release to open its VNDB page for download / patch info.

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03The book

The text.

15Quick facts

Developer
Key
Publisher
-
Original JP
Nov 28, 2025
English release
-
Length
6-7 hrs
Rating
-
Also known as
augment protocol · Iris City

13Synopsis

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.

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

04Reviews and discussion

What readers wrote.

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23Rating distribution

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25Lists featuring this VN

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19Discussion

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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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Catalog data · VNDB v48532 · last sync 2026-04-24 · last edited by @-

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