Initially released at a cosmic record event held on Aug 14, 2015. General sale started on Nov 27, 2015.
Vocals: Sarasa Ryuoh (cv. Mai Fuchigami)
Music: Taishi
Lyrics: Manaka Tachibana*
Mastering Studio: JVC Mastering Center
* Manaka Tachibana is a fictional character. The actual lyricist is not available.
Album was composed by Taishi and was released on August 14, 2015. Soundtrack consists of 4 tracks tracks with duration over . Album was released by Cosmic Record.
CD 1
| 1 | Summer Little Rainbow | | |
| 2 | フライング・ソーサー | | |
| 3 | Summer Little Rainbow (instrumental) | | |
| 4 | フライング・ソーサー (instrumental) | | |
