I really want to read a manga about someone who was taken in and raised by someone or something or some animal, something that isn't really human and doesn't know that they are human. I looked in the categories, but I really suck at finding stuff in that so if you know of a category name, that'll help too. I can't really think of any examples off the top of my head, sorry, but I'd really like it if they are super unaccustomed to human things, like language or electronics if that helps you think of something. I also love romance as a side plot.
Thanks~ I hope you can think of something for me~

How about Doubutsu no kuni?

Moon-Ah the heroine is raised by god-like being but he knows that she is human so it doesn`t fit perfectly
Darren Shan a bit of spoiler - the MC is raised as a human and much latter is revealed that he was not one from the beginning.
Land of Silver Rain heroine is raised by Dokebis
Ryou an Oni girl is raised by human parents or something like this. I read it long ago so its a bit hazy.

Doubutsu no kuni is good x2

I second Doubutsu no Kuni
Momochi-san Chi no Ayakashi Ouji: lead male was trapped in an ayakashi house and so he grows up with them.
Mahou Tsukai no Yome: lead female can see spiritual things, got sold, then bought by a mage whose head is like a baphomet skull. beautiful artwork, intriguing story, totally recommended.