These are not ruins but active farmlands, with carrot fields and kept up roads and bridges and everything. You do just keep wandering around for a bit before coming across one farm with a father and two daughters off tending to the carrots. Which is amusing to the fact that they are sporting bunny ears! This was wildly speculated on within the arcane college that the biobomb did more than just make catfolk, but bunnyfolk too. Those daughters would make a fine addition to  your zoo and help with your debt. All the same Lisa whimpers, scared out of her mind as she hides behind a random stump. Human arcane users have lost the ability to teleport from the shrinking arcane power of the planet, which is why you picked a succubus to do the teleporting for you. You are the first human in hundreds of years to get this far off and spot bunnies in their natural habitat.