オサナナブルー (Osanana Blue)

Background
"I've always wanted to have this kind of love, but it's just a pipe dream, for my childhood friend's a plump guy with a shaven head." ~author's comment.

Last Note.'s 12th published work. It tells a story about love between two childhood friends. The song first appeared on TEAM Entertainment's IA THE WORLD ～Hikari～ album, where it was sung by IA.

Later, a cover with GUMI's vocals was featured on Last Note.'s album First trip, along with an original album exclusive music video by Hechima, which was available with limited edition of the CD.

On April 14th, 2013 the PV was officially uploaded on Nico Nico Douga.