Momohime is a central character in the action role-playing game 'Muramasa: The Demon Blade,' developed by Vanillaware. She is a princess whose body becomes possessed by the spirit of a vengeful ronin named Jinkuro. As a result, she is drawn into a complex journey involving battles and quests across the mystical regions of Japan. Her character arc explores themes of identity and redemption, as she struggles to reclaim her body and protect her kingdom. Momohime's story is intertwined with themes of spirituality and the supernatural, making her a pivotal figure in the game's narrative.