Never end "Opus"

Never end "Opus" is an original song appearing on THE IDOLM@STER SideM ST@RTING LINE-11 Altessimo. It is performed by Kei Tsuzuki and Rei Kagura under the unit Altessimo.

CD Recordings
THE IDOLM@STER SideM ST@RTING LINE-11 Altessimo (sung by: Kei Tsuzuki and Rei Kagura)