Secret Letter Clues Guide – Duet Night Abyss

In Duet Night Abyss, Secret Letter Clues are the primary currency for unlocking new characters, weapons, and Demon Wedges. You spend these clues to obtain Secret Letters, then use them in Covert Commissions to permanently add new assets to your roster. Knowing how to earn and manage clues efficiently is key to progressing smoothly.

Earning Secret Letter Clues

The fastest short-term way to accumulate clues is to raise your Trial Rank and complete daily activities. Focus on your daily commissions and quests first—these provide a steady, predictable income. Beyond that, you can earn clues through:

• Trial Rank progression – advancing your rank rewards you with increasing amounts of clues.
• Daily commissions and activities – a reliable daily source.
• Quest rewards – both main and side quests contribute.
• Achievements – completing specific milestones gives bonus clues.
• Demon Wedge Casket – opening this casket yields additional clues.
• Limited-time events – seasonal events often offer clue rewards.

For best results, combine all available methods. Prioritizing Trial Rank and daily tasks gives you the fastest short-term gains, but the other sources add up over time for steady long-term growth.

Converting and Spending Clues

Duet Night Abyss Phoxene Plumule

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