reason!!
The opening theme to the anime adaptation of [i][[idolmaster side-m|THE IDOLM@STER: SideM]][/i]. Sung by the focus groups of the anime, [[Dramatic Stars (idolmaster)|]], [[jupiter (idolmaster)|Jupiter]], [[Beit (idolmaster)|]], [[S.E.M (idolmaster)|]], [[High X Joker (idolmaster)|]], and [[w (idolmaster)|W]].

The outfit worn during the sequence is an [[idol]] costume; a red & [[jacket]] with [[epaulettes]] and [[sleeves rolled up|folded]] [[short sleeves]], a blue [[vest]] with a [[black necktie]] underneath, and [[black pants]].
reason!! (idolmaster)