The iDOLM@STER SideM: Wake Atte Mini! - Shoshi Kantetsu Daisouji! / アイドルマスター SideM 理由あってMini! 初志貫徹大掃除！

Unaired episode bundled with the special edition of The iDOLM@STER SideM Wake Atte Mini! Returns manga. 315 Production clerk Ken Yamamura was organizing the costumes of the idols in the office. Shinsoku Ikkon and Legenders also went there and helped organize the costumes while feeling nostalgic for the past....