Sweet Blue Flowers (青い花, Aoi Hana, lit. Blue Flower) is a Japanese yuri manga series written and illustrated by Takako Shimura. It was serialized between November 2004 and July 2013 in Ohta Publishing's Manga Erotics F manga magazine and is licensed in English by Viz Media. Eight volumes were published between December 2005 and September 2013. The story focuses on Fumi Manjōme, a lesbian high school girl, and her close childhood friend Akira Okudaira, who tries to keep her friends happy through difficult times.