i was going to get hotaru's key on order realm when i found a bug or something else, i dunno.Rigth now i'm just toying with it see what happens.
If you take the road that goes to h-1 (from h-7 to h-1 going up)near h-6 the road forms a T. Rigth pass that T if you force yourself on the rigth while still going up, on the rigth they're is a empty blue space, you can leave the ground and flot around on that empty space and your map becomes -1.
Try it see if any of you finds something. Probablly a bug, but who knows with midway
that's it
peace