The Nocturnal Echoes bosses are special enemies that unlock as you progress through the chapters in Duet Night Abyss. Players need to defeat these bosses if they wish to unlock more characters and weapons in DNA. Gaining access to the Nocturnal Echoes boss fights is essential, as it offers many special rewards like upgrade materials and Secret Letters.

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Main Characters In Duet Night Abyss & Which One Should You Choose

There are a total of four MCs in Duet Night Abyss, where two of them are the second main characters; here are all the main character names in DNA.

How To Unlock Nocturnal Echoes Bosses In Duet Night Abyss

unlock nocturnal echoes in dna duet night abyss

Phoxhunters can unlock Nocturnal Echoes after completing the Can I Keep It quest in Duet Night Abyss. The quest is triggered shortly after On A Gentle Breeze main quest, which involves Psyche and Outsider. During the Can I Keep It quest in DNA, players and Snow need to help Truffle and Filbert catch the Geniemon hunters in the sewers.

nocturnal echoes boss in dna duet night abyss

Eventually, both characters return to Camilla and bring a few Geniemon to show they are not dangerous. By the end of the quest, the Nocturnal Echoes feature is unlocked. To access these special bosses, open the Main Menu and enter Combat. In one of the tabs, Phoxhunters can find the Nocturnal Echoes option.

All Nocturnal Echoes Bosses In Duet Night Abyss

all nocturnal echoes weekly bosses in dna duet night abyss

Nocturnal Echoes bosses are powerful enemies you encountered before, like Sibylle at the beginning of the game during the tutorial quest in Duet Night Abyss. So, make sure to have the best character with the correct build to deal high damage and earn rewards quickly.

Nocturnal Echoes Bosses

How To Unlock

Rewards

Sibylle

After completing Can I Keep It quest.

  • Coin
  • Ring of Severed Fear
  • Secret Letter: Shackle of Lonewolf
  • Secret Letter: Tabethe
  • Secret Letter: Sacrosanct Chorus
  • Secret Letter: Stellar Finality
  • Secret Letter: Blast Artistry

Crystalophile

After completing Can I Keep It quest.

  • Coin
  • Ring of Escaped Entropy
  • Secret Letter: Vernal Jade Halberd
  • Secret Letter: Yale
  • Secret Letter: Viridis Reefs
  • Secret Letter: Guixu Ratchet
  • Secret Letter: Truffle and Filbert

The Eclosioner

After completing Can I Keep It quest.

  • Coin
  • Ring of Chronal Reversion
  • Secret Letter: Wandering Rose
  • Secret Letter: Rhythm
  • Secret Letter: Sacrosanct Decree
  • Secret Letter: Exiled Thunderwyrm
  • Secret Letter: Submerged Serenade

The Warden Of The Inferno

After completing The Judgment Day quest.

  • Coin
  • Ring of Justice Rekindled
  • Secret Letter: Punitive Inferno
  • Secret Letter: Hellfire
  • Secret Letter: Day of Sacred Verdict
  • Secret Letter: Embla Inflorescence
  • Secret Letter: Arclight Apocalypses

Beast From The Snowfield

After completing the Final Act of the Children From The Snowfield, Heart of Innocence.

  • Coin
  • Ring of Severed Fear
  • Secret Letter: Sacred Favour
  • Secret Letter: Lisbell
  • Secret Letter: Aureate Yore
  • Secret Letter: Daybreak Hymn
  • Secret Letter: Phantasio
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Duet Night Abyss Tag Page Cover Art
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Systems
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Released
October 28, 2025
Developer(s)
Pan Studio
Publisher(s)
Hong Kong Spiral Rising Technology Co., Limited
Engine
Unreal Engine 4
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WHERE TO PLAY

DIGITAL
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Genre(s)
Action, Adventure, RPG