While progressing through One Piece Odyssey, players come across a myriad of red-colored chests that they cannot open. Even after reaching the near-end of the story, they may fail to open the chest, making them wonder how to open locked treasure chests in One Piece Odyssey. And the truth is that you need a specific item to do so.

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In this guide, we will talk about the item that you need to unlock the treasure chests found in One Piece Odyssey

How to Open Locked Treasure Chests in One Piece Odyssey


In One Piece Odyssey, you can open locked treasure chests using the Treasure Chest key that you obtain after completing the Grand Line Quiz side quest. 

Though the game offers many Treasure Chests that you will come across while playing through different Memoria, you must remember their locations and keep progressing the game until you find those keys. 

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As you continue your journey, look out for an NPC named Quiz Researcher Zoner. You will find her in the following 4 locations:

  • Alabasta – Great Sandy Desert 
  • Water 7 – Near Mayoral Residence Plaza Yoisa fast-travel
  • Marineford – In the small square in the South Town area
  • Dressrosa – Dressrosa city

Interacting with her will present you with quizzes and tasks you must complete. 

When you finally complete the Dressrosa Grand Line Quiz, you will obtain the Treasure Key that you can use to open the red-colored chests in One Piece Odyssey.

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The key you obtain after completing the Grand Line Quiz side quest can open every chest found in One Piece Odyssey

That concludes our guide on how to open treasure chests in One Piece Odyssey

One Piece Odyssey is available on PlayStation 5, PlayStation 4, Xbox Series X and Series S, and PC platforms. For more on One Piece Odyssey, check out our dedicated guides section. 

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How to Open Locked Treasure Chests in One Piece Odyssey – Treasure Guide


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