Nico robin, a former member of the straw hat pirates and archaeologist now has retired from the straw hats and decides to head on her own journey with nami. As the 2 women set out on journeys across the sea, they eventually stop on cake island, where Nico robin found a treasure that contains a slice of blueberry pie.

Unfortunately for her, it bears a curse.

Once you eat it, it fills you with blueberry juice and now robin is forever a naked blueberry.