|A1||Duo # 1||3:10|
|A2||Duo # 2||2:20|
|A3||Duo # 3||5:15|
|A4||Duo # 4||7:45|
- Manufactured By – Kojima Recordings, Inc.
- Bass – Shuichi Nagano (tracks: B1 to B2)
- Design – Hiraoki Kizuka
- Drums – Yasuhiro Yamazaki (tracks: B1 to B2)
- Electric Guitar – Akira Iijima (tracks: A1 to B2)
- Electric Guitar, Percussion – Junji Hirose (tracks: B3)
- Producer – Junji Hirose
- Soprano Saxophone, Tenor Saxophone – Junji Hirose (tracks: A1 to B2)
A Studio, Tokyo, 19 September 1981 (A1 to A2).
Live at Far-Out, Atsugi, Tokyo, 17 October 1981 (A3 to A4).
Live at Kid-Ailack Hall, Tokyo, 9 October 1981 (B1 to B2).
Live at Far-Out, Atsugi, Tokyo, 2 May 1981 (B3).