How to Get & Unlock Characters in Duet Night Abyss

Unlike many action RPGs, Duet Night Abyss doesn’t rely heavily on random gacha systems to unlock characters. Instead, it offers a variety of gameplay-based methods that reward consistent play, exploration, and event participation. Whether you’re a new player or aiming to expand your roster efficiently, understanding the character unlocking system is essential for long-term success.

Also, do not forget to play Duet Night Abyss on pc or Mac with MuMuPlayer! A clearer picture and better experience is waiting for you to experience!

For more guides, please review the link below:

1. Duet Night Abyss Weapon Build Guide: Best Weapons & Upgrades
2. Duet Night Abyss Beginner Guide (2025): Essential Guides

You could also directly download MuMuPlayer if you are missing any of the latest information for the game.You could also directly download the MuMuPlayer if you are missing any of the latest information for the game.

This guide explains how to unlock all characters in Duet Night Abyss, including farming Thoughts, collecting Secret Letters, completing quests, and participating in events.

1. Understanding the Character Unlock System

In Duet Night Abyss, every character is tied to a unique collectible called Thoughts — special shards used to unlock or ascend characters. To recruit a character, you must collect 30 Thoughts of that specific hero.

Once enough Thoughts are collected, you can unlock the character directly from the Reminiscence or Character Menu. This system rewards player activity over luck, encouraging engagement through multiple in-game features instead of random draws.

2. Covert Commissions — The Primary Unlock Method

Covert Commissions are special missions that allow you to farm character Thoughts directly. To access them, you need the corresponding Secret Letter for the character you want.

• Step 1: Gather Secret Letter Clues from daily or weekly activities.
• Step 2: Exchange 10 clues for one Secret Letter.
• Step 3: Use that Secret Letter to unlock a Covert Commission mission for a specific character.
• Step 4: Complete the mission to earn a chance at obtaining that character’s Thoughts.

Each Covert Commission can be repeated, allowing players to gradually accumulate the Thoughts required to unlock the character. The drop rate may vary by difficulty and mission performance.

Tip: Focus on one character at a time to avoid spreading your resources too thin.

3. Collecting Secret Letter Clues

Secret Letter Clues are the key to accessing new characters. They can be obtained from several sources across the game:

• Daily Missions: Completing daily objectives consistently provides a steady supply of clues.
• Weekly Challenges: High-tier weekly missions often yield bonus clues.
• Exploration & Battle Modes: Advanced game modes like Mystic Maze or Nocturnal Echoes occasionally drop clues or Thoughts.
• Events: Limited-time events often reward extra clues or full Secret Letters.
• Story Progression: Some story quests and side missions naturally grant clues or Letters as rewards.

Once you have enough clues, trade them in the Exchange Shop for the Secret Letter of your chosen character.

4. Unlocking Characters Through Story Progression

Not every character in Duet Night Abyss needs to be farmed manually. Some are automatically unlocked as you progress through the main storyline or special missions.

For example:

• Early-game characters are unlocked during prologue chapters.
• Certain companions join your roster after completing specific story arcs.
• Others may appear as rewards during limited-time in-game events.

Pay attention to questline milestones — completing these efficiently ensures you don’t miss out on guaranteed characters.

5. Event Rewards and Limited-Time Characters

Events are another excellent source for unlocking new characters or earning bonus Thoughts. Many seasonal events introduce new heroes or limited-time challenges that grant their fragments.

Participating in events provides multiple benefits:

• Early access to newly released characters.
• Free Thoughts and Secret Letters.
• Exclusive gear or cosmetics tied to event missions.

Tip: Always check the in-game event calendar to stay updated. Missing limited events might delay your access to certain characters.

6. Shop and Premium Currency Options

If you’re close to unlocking a character but missing a few Thoughts, the in-game Shop provides another option. You can purchase Thoughts individually using premium currency (such as Phoxene Plumules).

This system allows players to speed up progress without being forced into heavy spending. While farming remains the primary method, buying a few missing shards can help complete your roster efficiently.

7. Free Characters and Examples

A few characters in Duet Night Abyss can be unlocked for free without grinding commissions or spending currency. Examples include:

• Story-based heroes unlocked automatically as the narrative progresses.
• Event-exclusive characters given as login or participation rewards.
• Pre-registration bonuses that deliver full characters via in-game mail.

These free unlocks are especially valuable for early-game players looking to expand their combat options quickly.

Frequently Asked Questions about Duet Night Abyss

Q1: Do I need to spend real money to unlock characters?

No. All characters can be unlocked through gameplay, though premium currency can be used to speed up progress.

Q2: What’s the fastest way to unlock a new character?

Focus on daily and weekly quests for clues, trade them for Secret Letters, and consistently complete Covert Commissions.

Q3: Can I get duplicate Thoughts?

Yes, but duplicates can be used for character ascension or stored for future upgrades.

Q4: Are event characters permanent?

Most event characters remain available through other systems later, though some may be time-limited.

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Conclusion

Unlocking characters in Duet Night Abyss is an engaging and fair system centered on effort, exploration, and strategic resource use. By mastering the Secret Letter and Covert Commission mechanics, you can steadily expand your roster without relying on luck. Stay consistent with daily tasks, participate in events, and make smart use of the in-game shop when necessary. With dedication, you’ll unlock every hero and create the perfect team for every challenge.