The key is an item that is a part of a quest to obtain access to Second Sea.
Obtainment[]
This item can be obtained at Lv. 700+ by talking to Military Detective.
Usage[]
Once they have obtained the key, the player must travel to Frozen Village and locate the cave where Ability Teacher and Colours Specialist are found. A big wooden door will be present, which can be unlocked by using this key. Once the door is unlocked, the player can kill the Ice Admiral.
Trivia[]
- The player can flash step through the wooden door, but cannot damage Ice Admiral without unlocking it.
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| First Sea | Ancient Relic • Cup • Torch • Key |
|---|---|
| Second Sea | Core Brain • Fist of Darkness • Hellfire Torch • Hidden Key • Library Key • Water Key |
| Third Sea | Apple • Banana • Pineapple • Fruit Bowl • Fire Essence • God's Chalice • Hallow Essence • Holy Torch • Red Key • Sweet Chalice • Blue Gear |