★ 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

Here you'll find a walkthrough for the main quest The Secret Behind the Door in Duet Night Abyss (DNA). Read on to learn how to complete The Secret Behind the Door, quest rewards and objectives, dialogue impressions, and more information!
| ◄ Previous Quest | Next Quest ▶ |
|---|---|
| Crystallo of Stella | Prey VS Hunter |
| The Secret Behind the Door Objectives |
|---|
|
1. Meet Outsider 2. Leave Outsider's House 3. Return to Sanctuary 4. Head to the Hypnos' House 5. Go Upstairs and Chat with Psyche 6. Investigate the Hypnos' House 7. Gather Intel from the Lodgers 8. Wait for Henrik in the Lobby 9. Inform Outsider of Your Findings |

Go down the stairs behind the Asphodel and follow the quest marker to Outsider's location. The Outsider will lead you to his house and introduce you to his sister.

When the cutscene ends, leave Outsider's house.

Follow the quest marker to get to the Sanctuary.

After the cutscene, make your way to the Hypnos' House and enter.
Go up the 2nd floor, then find Psyche and chat with her. After the initial conversation, an Impressions check will occur.
| Prompt 1 | ||
|---|---|---|
| Ah, really? That's great! But that is so... domineering. How did you make that happen? | ||
| Response | Impression | Points |
| I told him a story that brought him to tears. | Empathy | +3 |
| He broke his leg on his way back and is now howling in pain at home. | Chaos | +3 |
After talking to Pyshce, you will obtain a White Flower.
Follow the quest marker and check out the Locked Door downstairs.

Talk to Mia in one of the rooms in the back on the 2nd floor.

Go down to the lobby to trigger a cutscene with Henrik.
Find the Outsider hanging around in the backalleys and tell him how the investigation went.
| There is no boss fight in The Secret Behind the Door. |
|---|
| Obtainable Rewards |
|
|
|
|---|---|---|
| ◄ Previous Quest | Next Quest ▶ |
|---|---|
| Crystallo of Stella | Prey VS Hunter |

| All Quest Types | |
|---|---|
| Main Quests | Side Quests & [Special] Side Quests |
| Dynamic Quests | |
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