Flame Princess is first introduced as an anti-heroine character on the TV show Adventure Time She develops a crush on Finn the Human after Jake the Dog courts her on his behalf in "Incendium," but Jake rescinds the offer after her father the Flame King pronounces her as his "evil" daughter and she shows a firey temperament. But after Finn worked everything out, they became boyfriend and girlfriend. After Sora came to visit, she joined as Finn did.