As stated above, you didn't "purchase" Around the World, it was free & hasn't expired yet. Region-based (Segmented) Event equipment offerings reflect the region you were in at the time they're either accepted (free gift/ purchased from Shop) or began (brand new.) Therefore, if you were in Greece at the time the Event was accepted, but moved on to NW during it's course, you're equipment still reflects Greece.
Here's the WIKI Event page:
Gives detailed info on each Event (energy cost, obtainable. materials, equipment, etc.) It should be noted, the Events included in the sake will most likely have equipment that's too low for your region. I've done several in my China account simply for fun or experience points.