Library Key is an item in White Day: ALNS and Remake.


Using this Key, you can open the Library B, on the 4th floor of New Building.


  • It is located on the floor near the Library B 's door.

Further Notes

  • It is not featured in the remake.
    (In the remake, It locked the door latch.)
  • If you want to acquire this item, you need to acquire the "Library Rules Plaque.


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