Fionna is a 15 year old girl that always had a passion for adventuring. But after her mother passed away, she had a case of depression that caused for her to stop. Luckily when she was 7, she was adopted by a queen named Simone with her two daughters, Marceline and Flame. Not to be her child but to be her slave. She thought that she had what others call a true family but what she didn't know that they will just lock her up inside the castle and only let her out when necessary. She got 'treated' this way for 8 years. Until one summer,the prince of the kingdom near them threw a ball to celebrate their kingdom's success and of course Fionna wanted to attend. Will she be able to taste freedom? or Will she be locked in the castle for the rest of her life? Adventure Time x Cinderella ©FireLightus for the cover