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Eustia of the Foul Wings

August's fantasy ADV is set in the city of Novas Aitel floating above the earth and its lower prison. After the Great Collapse, the protagonist Kaim loses everything and survives in prison by relying on knives and hired work; After meeting the girl Tia, the story gradually touches on disaster, identity, and urban order.

Work information
Title of the workEustia of the Tainted Wings
Chinese nameEustia of the Foul Wings
The publication date listed in the materials2011-04-28
PlatformPC / PSV / PS4 / Nintendo Switch / Android
GenreADV
Also known asAiyoku no Eustia / Eustia of the Tarnished Wings / Dirty Wings
Developmentオーガスト
Releaseオーガスト
ScriptTaku Sakakibara, Hiroyuki Uchida, Hideaki Anzai
Key animationべっかんこう
MusicActive Planets
Game engineEthroll
Website address recorded by the sourcehttps://august-soft.com/eustia_ref/ / https://august-soft.com/eustia/ / https://dramaticcreate.com/eustia/ / https://www.entergram.co.jp/eustia/
External links to source recordshttps://erogamescape.org/~ap2/ero/toukei_kaiseki/game.php?game=13640 / https://vndb.org/v3770

Source: Structured works maintained by the Bangumi community, filtered and rearranged by this site.

Novas Aiter and the Great Collapse

August sets the story in the floating city of Novas Aitel. A corner of the city once fell along with many residents, and after the great collapse, the city was continuously shrouded in unreasonable tragedy. The floating city district is connected to the living environment of the prison below, and the characters' origins and locations determine the order they can access.

Cam and Tia

Cam Astraea lost everything in the Great Collapse and was stranded in prison. As a child, he was assigned to work in a brothel, but was later recognized by the previous leader of the Incorruptible Golden Lock, making a living through dangerous work. After his ex died, Cam quit that job, but the violence of prison still surrounds his life.

Tia appears in the tragic city where Cam lives. Auguste's story introduces how their meeting connects the city to whether the city can see a turning point; The Entergram profile page adds to Cam's past and identity.

Genre and narrative

The work is labeled as a fantasy adventure ADV. The story progresses through Kaim's actions in prison and the city, gradually touching on disaster, organization, and personal choices. Character relationships and social positions together create conflicts, and the "Dirty Wings" in the title is tied to the fate of the city.

Version and main creators

The original PC game was released on April 28, 2011. The August product catalog separately lists the 2016 new edition, PS Vita port, and 2022 PS4/Switch versions. The Entergram home console page lists the original artwork by Bekkan Kou, the script by Taku Sakakibara, and others; This information corresponds to the host product.

Continuous main storyline and character endings

In the PC version, each chapter unfolds in sequence of events: Fione, Eris, Irene, Lavilia, Ricia, and finally the core case of Eustia. Along the way, you enter the character's romance ending, which ends at the corresponding branch; Continuing the main storyline retains the influence of previous events, allowing characters to participate in subsequent crises through different choices.

Kuroba investigates the differences between dependence and dependence

In Chapter 1, Fione and Kaimu work together to investigate Kuroba, but then experience betrayal by the vice-captain, the death of her brother, and discover that the healing facility is not the one she believes in. Chapter Two shifts to the conflict between the Uncorroded Gold Chain and Wind Rust. Eris hopes to continue being treated as Kaim's possession, while he wants her to live independently; Both sides have opposing desires to enter this power struggle.

The choice between the saint and the princess

A new collapse puts Irène at the risk of execution, but Kaim intervenes to stop it. Irène knows that the city does not float through the saint's prayers, yet she still trusts the angel's guidance in her dreams; Lavilia chooses to protect her, and the two face conflicts of faith and mutual dependence. In the subsequent princess arc, Kaim helps Ricia, who is controlled by Gilbert, understand the prison situation, prompting her to make her own decisions. At the coronation, she discovered that her father had kept the crown she had given herself.

City Crisis and the End of Tier

Continuing the main storyline, Kaim leans closer to the nobles during the final crisis, increasingly relying on Lucius's judgment to save the city at the cost of a few sacrifices; Zeke mobilized the prison residents to take a stand-in against him. Eris returns the money and decides to act according to her own will, prompting Kaim to reconsider going to the tower. Tia ultimately protects the city with her life and disappears; this endpoint is the final route of the main storyline.

The specific composition and version of the original soundtrack

The official digital original soundtrack includes 67 tracks. "Abgrund" and "Asphodelus" were composed by Kotaro Kodaka; "Close My Eyes" was composed by Ryota Fujii with lyrics by Sanagi; "Tears of Hope" was composed by Thomas Bianco with lyrics by ЯIRE; "To the Dear World" was composed by Ceui and lyrics by hanon. The rest of the instrumental music and the final section of the table of contents are arranged under the credited name Sumiisan for composition. "Asphodelus" and "Tears of Hope" are listed as full and short versions respectively.

Distribution of recording for theme singles

The two six-track theme singles were released on April 28, 2011. Ceui performed "Asphodelus" and "To My Dear World," ЯIRE performed the insert song "Tears of Hope," and Ami Fujisaki sang the insert song "Close My Eyes." The original single "Asphodelus" was arranged by Kotaro Kodaka and Sumii San, with the latter mixing the latter; The arrangement and mixing of "Tears of Hope" were all by Thomas Bianco; "To the Dear World" arranged by Ceui, with Sumi acid mixing; "Close My Eyes" arranged by Ryota Fujii, mixed with Sumii San. The two discs also feature four Special Arranged versions: DeepForest, Distorted, Shifted, and DayBreak.

Tia's character cover and vocal perspective

The EUSTIA character disc released on November 25, 2011, included 'Sono' and 'Asphodelus' sung under Tia's name by Aino Nanjo, as well as 'Acoustic Arrange' arranged by Kotaro Kodaka. In a label interview, Nanjo explained that "Asphodelus" was originally performed by Ceui, and she hopes to sing from Tia's own perspective this time. Xiao Gao explained that when the original song was created, he imagined the unreasonable fate and contradictions faced by the women of Novas Aitel.

A medley of two songs featuring the Fiona theme

On January 27, 2012, ERIS/FIONE included 'Clientes no Muku' performed by Yuu Asakawa, 'Misty Light' by Yukei Saito, and 'Visionaries-Piano Attractive-', which combines the two songs and arranged by Misaki Nakajima. In the production notes, Ryota Fujii explicitly referred to "Rain" as the Fiona theme; When producing "Misty Light," he started from the simple voice of this theme, employing different four-beat techniques to simultaneously express her external sense of justice and inner expression.

A duet between the saint and Lavelia

On the third character album released on April 27, 2012, Tae Okajima and Atsumi Tanezaki performed a duet of "HIKARI no Nocturne," and Eriko Nakamura sang "Buds Crown." The former was composed and arranged by Ryota Fujii, and the latter by Misaki Nakajima, with lyrics by Sakura Nagahara. In a recording interview, Nakamura explained that she recorded backing vocals at the director's request, and the overlapping vocals reminded her of Lycia's inner conflict. The interview also listed Tomoya Kokufu as a record recording engineer.

Caim's response song and piano version

On July 27, 2012, the CAIM character album positioned "Cold Flower" as a response to Tia's "Empty Seed," performed by Takashi Kondo, composed and arranged by NOIZ'n GIRL; "Melt Drops" features a duet between Kondo and Nanjo, with composition and arrangement by Misaki Nakajima. The album also includes Bos's Magnificent and Dramatic instruments on piano, as well as two karaoke tracks that retain only the Kem or Tia voices. In an interview, Nanjo mentioned that harmony and mutual singing are her favorite choral parts.

2022 Port World Description: The legend of the origin of the floating city

The legend recorded on the official port website attributes the disaster from about five hundred years ago to humanity's neglect of prayer, the gods summoning angels, and the unsupported earth being swallowed by chaos. Finally, the Saint who was still praying begged for forgiveness, and the last city was thus lifted into the sky, becoming Novas Aitel; This is a religious interpretation circulating worldwide.

2022 Port World Description: Wings Grow

Epigastric disease began to be confirmed after the Great Collapse. The official website states that it develops regardless of age or gender. Small wings first appear on its back, then gradually grow until clothes can't cover it; None of the patients were able to fly because of this.

2022 World Explanation: The Gaps Left by Collapse

The ported world description states that during the Great Collapse, the number of people who fell along with the bedrock was said to be in the thousands; Such collapses leave no trace to mourn. Survivors who lost family and property and cannot mourn the deceased continue to endure a sense of loss after the disaster.

2022 World Report: Winged Concealment and Reporting

The official world description describes the feathering disease as "considered contagious." More than ten years after onset, the patient still had not been fully isolated; When their wings grow so large that clothes cannot cover them, even if family members hide the patient, they cannot be allowed to move outside. Ordinary residents are also strongly encouraged to report the feathers.

Source: Structured works maintained by the Bangumi community, filtered and rearranged by this site.

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Source author: Bangumi article contributor and community maintainer; License: CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/); Adaptation: This site filters and reorganizes structured facts, without copying the article summary.

Data compiled on: 2026-10-12.

本版编辑：免费机器翻译 · 2026-10-23

内容许可：CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/

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