Finn and Jake: what is a hero?

Finn and Jake are on an adventure like most of their days, however, something went wrong luckily Finn still has his sword to save the other humans from that bird monster and defeat those crazies, after all, he is a hero, right? I'm terrible at doing synopses but I hope you like my second fanfiction. I hope the first chapters are better and I can add more dialogues after all, I've been trying to improve. It's more of a crossover, but I don't think I'll explore the multiverse throughout the story. I hope you enjoy it, and please, if you can, comment on what you think and if you like it or not, leave a review to see what I'm doing wrong (I know some English but not much, so I use a translator). the image is not my i pick from Google