Story Bosses List for Duet Night Abyss (DNA). Read about all story bosses, unlock conditions, how to rebattle and Nocturnal Echoes.
Table Of Contents
List of Story Bosses
This article was last updated on December 4, 2025 and will no longer be updated moving forward. Thank you for your support to this project!
| Name | Chapter Unlock |
|---|---|
 Sibylle | Prologue: Whispers of the Sands |
| Crystalophile | Chapter 1: Crystallo of Stella |
| The Esclosioner | Chapter 1: A Bouquet for a Maiden |
| Battle Maven | Chapter 2: Beyond the Sands |
| The Warden of the Inferno | Chapter 2: The Judgement Day |
| ??? | Chapter 2: Looming Winter |
| The Devourer | Chapter 2: The Scarlet Land |
| "The Beast From the Snowfield" | Chapter 2: Heart of Innocence |
How To Rebattle?
Some Story Bosses Are In Nocturnal Echoes
Nocturnal Echoes is a weekly boss fight mechanic where you can obtain Secret Letters for characters and weapons as well as Skill Upgrade materials. As of Version 1.0, only 5 out of the 8 story bosses can be fought against in Nocturnal Echoes.
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