Right, what's there to know? Oyada is located in the Canis Major Dwarf Galaxy. It is roughly fifty thousand light-years from the Sol system. It was founded by peoples who migrated from the identically named state on Earth to avoid bloody troublesome bloody foreigners RUINING THEIR DAMN DAY. What a waste of time that turned out to be.
Some basic things to keep in mind: You're not wanted, you're not welcome, and if you cross us we'll make you regret it. You will be observed, like the spies you undoubtedly are. I will caution you now, keiti: Keep out of trouble, don't ask questions, and don't go poking anywhere you're not asked to. We can tell your kind. That skin of yours shows up very clearly on our nice clean streets. And those damned round eyes! How do you avoid going blind? Ha! In any case, I think that's enough. Get out. If you are decent enough to leave, don't come back.