Ocarina Hime no Rina-chan, also known as the Ocarina Princess or Rina-chan the Ocarina Princess, features in the tenth Soreike! Anpanman film. Her story revolves around finding Prince Shine, who previously sealed a vase containing the soul of the Black Demon King within a dark valley. This seal breaks, plunging the world into darkness and connecting her journey directly to the unfolding conflict. Her quest to reunite with Prince Shine becomes integral to the film's exploration of light versus darkness.