Of all the worlds we've seen, when and where would you prefer to be put, assuming you have the same likelihood as a random person to have access to the magic system)?
I would probably want to be put on either Sel (specifically the area with soul stamps from the emperor's soul, since that's the only magic I can think of that everyone can use) or the world from Yumi and the nightmare painter (since that's just a relatively normal near-modern city).