THE IDOLM@STER 9th ANNIVERSARY WE ARE M@STERPIECE!! was a series of live concert events that took place between August and October of 2014. There were multiple locations, different setlists and cast members for each dates as follows: Osaka Performance: Intex Osaka (Osaka International Trade Fair Hall) Building 5 in Osaka on August 2nd and 3rd, 2014. Costs 8,910¥ for tickets. Nagoya Performance: Nippon Gaishi Hall (Nagoya Civic General Gymnasium) in... see more