Sorairo Square

is a japanese manga series written by Sou. It began serialisation in the March 2009 issue of Manga Time Kirara Forward.

The series was released under 4 volumes from August 2009 to February 2011.

Synopsis
Story is based on three childhood friends: A girl who lost her memory, Miyuki; a girl who is a currently a super idol, Fumika; and Shuuichi, a childhood friend of Miyuki and Fumika, who likes to take photographs. Two years ago, Miyuki lost her memory by an accident and she kept a distance from people but somehow she begins to open her heart to Shuuichi. Their relationship seems like more than just friends but less than lovers, but in five years, Fumika came back from Tokyo to see Shuuuichi. Their feelings overlap and their childhood times slowly begin to move.

(Source: MU)