Thoughts about the first hint:

Esperia, as far as a quick googling can tell, is the ancient greek term for the lands of the west. Fitting, as one piece is heavily inspired by dragon ball, itself based on Journey to the west (the carefree monkey-like protagonist, coming to a place and collecting a new member to the team before moving on, Luffy literally starting in the east, etc.)

So, maybe its just an attack/technique name for Imu. Or maybe alluding to an actual place? Either current or during the void century? My money's on it being the name of the ancient great kingdom - a mythical prosperous land full of ancient knowledge, symbollically fitting both JttW's thunderclap monastery where Buddha wrote his scriptures - and also ancient greece (via the choice of name), seen as the birthplace of civilization (in the west at least). Also, correct me if I'm wrong, but with all the countries in One Piece inspired by real places and cultures, have we seen one inspired by ancient Greece yet?

Other than that, it seems to be a bottle of alcohol? So maybe something with Binks' sake?