Voiced by Yoko Hikasa and Monica Rial in the anime adaptations, Houki Shinonono (also known as Houki-san and Houki-chan) is a first-year student and the first heroine to appear in the Infinite Stratos series. She has dark blue eyes and ties her long purple hair into a ponytail with a ribbon, and is usually depicted in her Infinite Stratos (IS) Academy uniform with knee-high stockings and black knee-high boots.
In addition to being a childhood friend of Ichika Orimura, she is the younger sister of Tabane, daughter of Ryuuin, and niece of Yukiko. She’s well-known for being skilled as an IS operator, and is talented at kendo. The IS she pilots is the 4th-Gen Akatsubaki, manufactured by her sister.
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