Hyakka Ryōran: Samurai Girls is a light novel series written by Akira Suzuki with illustrations by Niθ to commemorate Hobby Japan's 40th anniversary. The first volume was released by Hobby Japan on February 28, 2009, with 17 volumes currently available in Japan under their HJ Bunko imprint. There are currently three different manga adaptations based on the Hyakka Ryoran universe published.