|This article is about a/an actor in Kamen Rider Hibiki.|
Aya Igarashi (五十嵐 彩 Igarashi Aya), better known under her stage name Sei Ashina (芦名 星 Ashina Sei) was a Japanese actress and former fashion model who portrayed Hime and Parent Douji in Kamen Rider Hibiki. She was affiliated with HoriPro Entertainment.
Ashina had aspired to be a model in high school and was scouted while in school. She debuted as a model and appeared in several magazines. In 2003, she made regular appearances in dramas and landed the role of Hime in Kamen Rider Hibiki.
In 2007, she passed a rigorous audition and landed the lead Japanese role in the 2007 movie Silk.
She was Emily VanCamp's Japanese-dub voice for the drama series reven8e.
On the morning of September 14, 2020, Ashina was found dead at her home in Shinjuku by her family. Her agency Horipro confirmed the news and said that investigations into her cause of death are in progress.