In the non-canonical, comedic spin-off *Higurashi no Naku Koro ni Kira*, Hanyuu serves as a fairy companion to Rika Furude, reimagined as a magical girl. She acts as Rika's advisor and guide, aiding her in battles against antagonists such as the "four generals of Tokyo Magica." Hanyuu's dialogue consistently ends with the phrase "~hanyuu," reinforcing the magical girl theme. She encounters a parallel-world version of Rika whose sarcastic demeanor starkly contrasts with the optimistic Rika she typically supports, causing Hanyuu significant distress. This portrayal diverges from her main series role, emphasizing lighthearted fan service and parody without advancing her canonical background or development.