The weapon upgrade notice is sent to Nier's house, by Gideon after going to the Junk Heap and completing an additional main quest in the second half of the game.


Dear Nier,

This is to inform you that the upgrade work on your weapon has been completed. The weapon is ready and available for pickup at your earliest convenience.

I also have a more personal request to make of you, one I hope we can discuss further once you arrive to pick up the weapon.


Two Brothers Weaponry

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