★ Tier Lists: Characters | Weapons | Geniemons
★ Builds: Fina | Lynn | Psyche | Lady Nifle | Rebecca
★ Versions: Rainbow-Coloured Dream | Version 1.1
★ How to Get Characters | Mystic Maze | Redeem Codes
★ All Character Weapons | Siren's Kiss | Pyrothirst
★ On a Gentle Breeze | Dead or Alive | Judgment Day

Nocturnal Echoes can be unlocked by completing the quest Can I Keep It in Duet Night Abyss (DNA). See the list of Weekly Bosses, drops and Secret Letter rewards, and how to unlock Nocturnal Echoes!
| All Boss Guides | |
|---|---|
| List of All Bosses | Nocturnal Echoes and Weekly Bosses |
List of Contents
Attention! |
This guide is still a work in progress. You can come back later, or sign in and use under the page's title to be notified of any updates! |

Complete the Can I Keep It quest in order to unlock the Nocturnal Echoes Weekly Boss Challenges. The quest can be accepted from Camilla at The Asphodel.
Can I Keep It Quest Walkthrough
| Bosses | Drops | Location | ![]() Sibylle |
・Secret Letter: Tabethe ・Secret Letter: Shackle of Lonewolf ・Secret Letter: Sacrosanct Chorus ・Secret Letter: Stellar Finality ・Secret Letter: Blast Artistry ・Ring of Severed Fear |
Purgatorio Island |
|---|---|---|
![]() Crystalophile |
・Ring of Escaped Entropy ・Secret Letter: Yale ・Secret Letter: Truffle and Filbert ・Secret Letter: Vernal Jade Halberd ・Secret Letter: Viridis Reefs ・Secret Letter: Guixu Ratchet |
Glevum Pit |
![]() Eclosioner |
・Ring of Chronal Reversion ・Secret Letter: Rhythm ・Secret Letter: Wandering Rose ・Secret Letter: Sacrosanct Decree ・Secret Letter: Exiled Thunderwyrm ・Secret Letter: Submerged Serenade |
Eastern District Icelake |
![]() The Warden of the Inferno |
・Ring of Justice Rekindled ・Secret Letter: Hellfire ・Secret Letter: Punitive Inferno ・Secret Letter: Day of Sacred Verdict ・Secret Letter: Arclight Apocalypses ・Secret Letter: Embla Inflorescence |
Lonza Fortress |
![]() Beast From the Snowfield |
・Secret Letter: Phantasio ・Secret Letter: Lisbelle ・Secret Letter: Aureate Yore ・Secret Letter: Sacred Favour ・Secret Letter: Daybreak Hymn ・Ring of Severed Fear |
Galea Theatre |
These are the current available Nocturnal Echoes challenges that you can get item rewards from!
| Tips and Strategies |
|---|
Bosses in Duet Night Abyss each have unique attack patterns that require dodging and proper manuevering of the battlefield to avoid. For Nocturnal Echoes, each boss may feature new moves that players will encounter.
Some attacks need to be charged, so there may be an indicator on which area to avoid.

Nocturnal Echoes bosses can only be claimed 5 time each week. If a player is aiming to unlock a specific item or character, they must plan ahead and choose which Nocturnal Echoes boss they want to challenge for the rewards they need!
Players might also need to upgrade their characters and weapons to take on higher difficulty challenges. The Nocturnal Echoes bosses' attacks will be faster and do more damage as the level increases.
| Recommended Characters | ||
|---|---|---|
Psyche
|
Lynn
|
Berenica
|
Phantasio
|
Rebecca
|
Lisbell
|
Units such as Psyche, Lynn, Berenica, Phantasio, Rebecca, and Lisbell are recommended as the best characters to clear Weekly Boss content.

Nocturnal Echoes are limited boss fights that can be challenged to farm and receive Secret Letters. These letters can help players unlock characters and weapons.
Note that players can get valuable rewards from these bosses, but Nocturnal Echoes can only be challenged 5 times each week for claiming rewards in fixed locations. These reset every week on Monday 05:00 AM (UTC+8).

The Nocturnal Echoes Bosses will be higher in difficulty in comparison to the story version of the boss. It is recommended to prepare your characters before the fight!

Duet Night Abyss Wiki Top Page
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Nocturnal Echoes and Weekly Bosses Guide

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