Sakasama Sekai / Once Upon a Time -Kibou no Uta-

 is the 17th single by Nakagawa Shoko.

CD

 * 1) Sakasama Sekai (さかさま世界)
 * 2) Once Upon a Time -Kibou no Uta- (Once Upon a Time -キボウノウタ-)
 * 3) Satellite Girl
 * 4) Sakasama Sekai (さかさま世界) (instrumental)
 * 5) Once Upon a Time -Kibou no Uta- (Once Upon a Time -キボウノウタ-) (instrumental)
 * 6) Satellite Girl (instrumental)

Limited Edition A DVD

 * 1) Sakasama Sekai (Music Video)
 * 2) Guren Doku Nisshoku ~SHOKO NAKAGAWA LIVE TOUR 2013 Konton Z Tour @10/6 Zepp Sapporo~

Limited Edition B DVD

 * 1) Once Upon a Time -Kibou no Uta- (Music Video)
 * 2) Guren Doku Nisshoku ~SHOKO NAKAGAWA LIVE TOUR 2013 Konton Z Tour @10/6 Zepp Sapporo~