Official Shinymas manga by Akira Shinozaki as presented on Comic Newtype.
THE iDOLM@STER is owned by BANDAI NAMCO Entertainment.

Synopsis:
Let's spread our wings and fly to the shiny stage of tomorrow!

This is a story about the idols of 283 (read "Tsubasa") Production and their pursuit of greater heights through cooperation and competition. Their goal? To win first place in "W.I.N.G.", the gateway to stardom for new and upcoming idols!!

THE iDOLM@STER: Shiny Colors Official Website: https://shinycolors.idolmaster.jp/