Infinite Stratos, also known as IS, is a Japanese light novel series written by Izuru Yumizuru.
The story is set in a near-future world where powerful exoskeleton weapons called “Infinite Stratos” can normally only be operated by women. However, Ichika Orimura becomes the only known male pilot capable of using an IS, and he is sent to the prestigious IS Academy, a school filled with female pilot candidates from around the world.
The series combines science fiction, mecha action, school life, comedy, and romance. It became popular for its colorful cast of heroines, futuristic battle suits, and lighthearted romantic comedy elements.
Huang Lingyin, also known as Rin, is one of the main heroines of Infinite Stratos.
She is a representative candidate from China and one of Ichika Orimura’s childhood friends. Rin has a lively, strong-willed, and slightly tsundere personality. She often acts tough, but she cares deeply about Ichika.
Her personal IS unit is Shenlong, a Chinese-made IS with powerful combat abilities. Rin is known for her energetic fighting style, twin-tail hairstyle, and competitive attitude toward the other heroines. She is a popular character among fans of the series.
Cecilia Alcott is one of the main heroines from IS / Infinite Stratos.
She is a first-year student at IS Academy and the representative candidate from England. Cecilia comes from a noble family and has an elegant, proud, and confident personality. At first, she acts somewhat arrogant toward Ichika Orimura, but she later becomes interested in him and shows a more affectionate side.
Her personal IS unit is Blue Tears, a long-range combat IS that specializes in shooting and precision attacks. Cecilia is known for her blonde hair, blue eyes, refined appearance, and graceful aristocratic image. She is one of the most recognizable heroines in the series.
Shizune Takatsuki is a supporting character from IS / Infinite Stratos.
She is a student at IS Academy and is known for her calm, serious, and reliable personality. She is often described as a responsible classmate, but she also has a slightly playful side, such as enjoying humorous books and magazines.
Shizune usually wears a hairpin and has a neat, modest appearance. She is also connected to Houki Shinonono as her roommate, making her part of the daily school-life side of the series.