Princess Rosalie of Celica was in a situation that she had no way of getting out of. Forced to marry Prince Roderick for a better economy in their kingdom, she's been trying to escape since she found out. On the day that she was having her gown measured, Rosalie finally escapes and ends up falling into a hole, knocking her unconcious. Marshall Lee was the infamous Vampire King, roaming around in Ooo, he stumbles across a barrior, the border of Ooo and Celica. As he went through, he finds Princess Rosalie, covered in blood and unconsious. Marshall then decides to take Princess Rosalie back to Ooo for Prince Gumball to help heal, when she wakes up, she has no idea who she is. The adventureo of finding identity that Rosalie and Marshall, along with the rest of the Adventure Time gender bender gang, take is an epic journey of finding who she is and where she came from. In this journey, strange things happen and, could Marshall be falling for Princess Rosalie?!
