Momiji is Ryu Hayabusa's apprentice and the Dragon Shrine Maiden of the Hayabusa clan.

Momiji debuted in the 2008 title, Ninja Gaiden Dragon Sword, though she made her Dead or Alive debut in the 2013 title, Dead or Alive 5 Ultimate.

She is the keeper of the Dragons Eye, a sacred jewel that is said to hold the spirit of a mighty dragon. In times of great danger, it is her duty to ensure that the jewel makes its way to Hayabusa, as it enhances the power of his Dragon Sword.