>>2345009Add some sad subplot about her being kicked out of her all-female (not realistic I know, but it's my thing) tribe for whatever fucking reason (an ancient prophecy or something) so she's had to survive out in the wilds all alone for a few years. Or maybe she was just lazy/clumsy.
So white shipwrecked girl has to overcome the challenge of surviving in the middle of the jungle, while tribal girl has to overcome the ancient prophecy/trial/whatever to prove herself worthy of the tribe. Add in some minor characters from the tribe in the mix, some occasional challenges like the attack of wild animals, dangerous weather conditions, a temple filled with traps (of the mechanical kind) or a giant squid if you're into that, and you've got yourself a solid enough plot for a 14-episode yuri/ecchi anime (that are never enough for my taste).
Second season you could have a ship approach the island to pick up the white girl, while the tribal girl decides to follow her to the civilised world, and plenty more shenanigans could ensue.
