In Berry Avenue on PC, you usually can’t truly drop most items the way you would in some other games. What players typically do is remove, unequip, or swap the item through the Avatar menu, rather than place it on the ground.

How to remove an item

  1. Open Avatar in Berry Avenue.
  1. Go to Menu.
  1. Select Equipped.
  1. Find the item and either remove it or replace it with something else.

If you mean outfit items

If the item came from an Import ID , you can clear it by going back into the same Avatar menu and changing or deleting the equipped item entry. Berry Avenue guides for PC show the item is managed through Avatar > Menu > Equipped > Import ID/Add rather than a normal drop key.

PC control note

Some Berry Avenue videos also note that on PC, a mouse and keyboard are needed to access and click the clothing/item menus smoothly.

Simple answer

So the short version is: Berry Avenue PC does not use a universal “drop item” key for most items ; you usually remove them from the Avatar/equipped menu instead.

TL;DR: Open Avatar , then Menu , then Equipped , and remove or replace the item there.