Improvisation

 is a single released by Hara Yumi.

CD

 * 1) improvisation
 * 2) Kimi to 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 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-)