Aiyoku no Eustia

A partial patch by Eustia Translations can be found here.

Aiyoku no Eustia


Game Information:

Title: Aiyoku no Eustia (穢翼のユースティア)
Publisher: August
Getchu link: Here and Here (Links NSFW)


After the demise of the surface world, the city of Novus Aether floats in the sky, supported by the prayers of the Holy Maiden.  More than ten years ago, when the Holy Maiden’s prayers faltered, an event known as the Gran Forte occurred.  A portion of the land, along with the unfortunate people there, fell from the heavens.

In the midst of this disaster,  the lower city split into two, separated by a shear cliff.  In time, the new lowest layer became the dwelling of all kinds of low-lives…people who lost much of their former lives during the Gran Forte, those cast down from above after the fact, and more.  This desolate area became known as “Prison”.

As if the Gran Forte was not punishment enough for the city, a strange disease in which wings would sprout from people’s backs soon emerged.  Those with the disease are shunned by fellow citizens, and even became persecuted by a special quarantine organization known as the Wing Hunters.

In Prison lives Caim Astraea, an ex-assassin who makes his way as a freelance and hired blade, refusing jobs that require him to kill people.  During one job, Caim finds a girl who contracts the wing disease while enveloped in a light that reminds him of the Gran Forte…

Patch Download Link:

  • English Translation patch version 0.28 released here.
  • Web Trial Translation patch version 1.0 released here.

Project Members: (

  • Translation: SlashZero, KurisuKun, TakaJun
  • Translation Checking: TakaJun
  • Tools: Solve, Nagato, soywiz
  • Editing: Fluorite, SlashZero
  • Image Editing: Vivio
  • Patch Engineering: ArchDemon
  • Beta Testing: Ark, Danielsan, Savon, Yohan-Kadmus, Zapper, Jonathanb9595, TheGuy, Angeldeath
  • Special Thanks: Danielsan, Frank, Marelt

Current Project Members: (


  • Project Leader: SlashZero
  • Translation: KurisuKun, SlashZero, TakaJun
  • Editing: Fluorite
  • Tools: Solve
  • Image Editing: Vivio
  • Video Editing: GvS
  • Installer: ArchDemon
  • Special Thanks: Nagato, soywiz

Past Project Members: (

  • Translation: Zen
  • Tools: Alex, Vaelis
  • Technical Assistance:  Frank
  • Beta Testing: Danielsan, TakaJun, VaSSago