Duet Night Abyss has undergone a significant transformation, eliminating the gacha mechanics previously tied to character acquisition. In this new system, all characters are now accessible through farming, enhancing player accessibility.
While this change is largely beneficial, players will still need to invest considerable effort to unlock their desired characters. Below, we’ll explore the various methods available for acquiring characters in Duet Night Abyss.
Unlocking Characters in Duet Night Abyss: Your Comprehensive Guide

To expand your character roster in Duet Night Abyss, you’ll need to gather Secret Letter Clues. These can be obtained through daily quests, commissions, and collection rewards.

Once you’ve accumulated enough Secret Letter Clues, head to the in-game shop to purchase character-specific Secret Letters. Each character letter costs ten Secret Letter Clues.
Next, utilize the Secret Letter in the Covert Commission and aim for a Thought Reward that matches the specific Character Shard you’re pursuing. You will need to repeat this process until you’ve collected enough Character Shards along with the required Phoxene Plumule to unlock your chosen character.
Although this may seem tedious, it’s essential to be strategic about which characters you aim to unlock to optimize your time and efforts. Understanding your priorities can significantly reduce the grind.
Alternatively, you can also obtain character-specific Secret Letters by completing events such as Nocturnal Echoes, Mystic Maze, and Immersive Theatres, contingent upon the active character banner. This approach eliminates the need to farm for Secret Letter Clues; however, the availability of challenges for these events can be limited, so knowing the character you want ahead of time is crucial for efficient farming.
For those looking to speed up the process, purchasing characters directly from the in-game store is an option. However, this option comes at a substantial cost. If you prefer not to engage in microtransactions, rest assured that the game does provide ample opportunities for free play. For players willing to invest a little financially, consider spending on passes like Bard’s Tome, which may offer better value for your time compared to direct character purchases.
In summary, while unlocking all the characters in Duet Night Abyss may require a significant investment of time, acquiring the first few characters is relatively straightforward. Combine daily and weekly rewards with one-time achievements to expedite your character collection.
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