Improvisation

 is a single released by Hara Yumi.

CD

 * 1) improvisation
 * 2) Kimi to no Mirai (キミとの未来)
 * 3) "Suki." to Iwareru Made no 5-funkan (「好き. 」と言われるまでの5分間)
 * 4) improvisation -off vocal-
 * 5) Kimi to no Mirai (キミとの未来) -off vocal-
 * 6) "Suki." to Iwareru Made no 5-funkan (「好き. 」と言われるまでの5分間) -off vocal-

Limited Edition DVD

 * 1) improvisation (Music Video)
 * 2) improvisation (Music Video -Making-)

improvisation

 * Lyrics: Yuko Momiyama
 * Composition: Johnny.k
 * Arrangement: Johnny.k

Kimi to no Mirai

 * Lyrics: Matsumoto Ruka
 * Composition: Hamada Toshiyuki
 * Arrangement: Johnny.k

"Suki." to Iwareru Made no 5-funkan

 * Lyrics: Kanade
 * Composition: Hayashi Takeshi
 * Arrangement: Kanasaki Masashi (SUPA LOVE)