Well from the one episode where rainicorns parents visit they sinabi something about humans tasting deliscous which could mean tribes of humans still exist but then were eaten to and Finn was left
camvulcan
posted sa loob ng isang taon na ang nakalipas
^it's one of my personal tuktok three theories.
True-Finn-Fan
posted sa loob ng isang taon na ang nakalipas