Very little is known about Ryu Mizunagi but the author’s birthday is March 23rd. Originally from Aichi, Mizunagi won the Kodansha Four Seasons Manga Award in 2004 with the pilot for Witchcraft Works. Mizunagi was able to continue the project through Kodansha Japan in 2006.In 2015 Mizunagi debuted her second series for Kodansha Ltd. Japan.