Aki Sora (あきそら?, lit. Autumn Sky) is a Japanese manga series written and illustrated by Masahiro Itosugi. It was first published in September 2008 by Akita Shoten. It started serialisation in the ninth volume and was concluded in volume 25 of Akita Shoten's shōnen manga magazine Champion Red Ichigo. An OVA adaptation by Hoods Entertainment was released with the third volume of the manga on December 17, 2009. A second OVA adaptation, called Aki Sora ~Yume no Naka~ (あきそら～夢の中～?) was released by Pony Canyon in two parts; the first part released on July 30, 2010, and the second part released on November 17, 2010. In April 2011 Masahiro Itosugi announced that there will be no more printings of volumes 1 and 3 due to Bill 156.
The main characters (Aki and Sora) are similar in appearance to the incestuous characters (Keisuke and his unnamed sister) from earlier hentai manga "A Wish of My Sister" by the same author.
In an extra story written by the author in the final volume, she dedicates it in the memory of Itō Keikaku - a Japanese writer, who was her friend from university.
Read more about Aki Sora: Plot