Where's The Humanity? [Finn x Reader]

Y/N awakens to find herself trapped in a completely soundproof lab room with no doors, no windows and no memories of her past. Apparently, according to the strange lady in pink, she is in a place called the "Candy Kingdom" and the lady- who others seem to refer to as 'Princess' or 'Her royal Highness'- claims to have found the girl's unconscious body in an abandoned bear's den in a thick forest of woods not far from were they're at. Although the girl knows some things- such as basic English, medicines, as well as how to read and write- however the girl does not know how to distinguish the different names of colors, has never before seen a book and has absolutely zero knowledge on creatures from the outside world(such as animals). But most importantly, the girl is human. One of only two known humans left in the land of Ooo.

The 'Princess', giving into curiosity, experiments on Y/N a bit at cost, taking carful steps... But has been playing around with the idea of dissecting the girl, to learn more about her species.

But what will happen when a certain hero discovers this girl, and is struck with love at first sight?