HIKE Inc. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Masataka Mikami; hereinafter "HIKE"), a company engaged in the entertainment business including anime and games, is pleased to announce that it will be responsible for the production, including "planning," "construction," and "operation," of "THE IDOLM@STER SideM STAGE COSTUME MUSEUM," the first costume exhibition for "THE IDOLM@STER SideM," organized by Bandai Namco Entertainment Inc. The exhibition will be held at "BEAM Gallery" in Shibuya BEAM starting July 10, 2026. Creating a Memorial Costume Exhibition Where Visitors Can Experience the Work's Journey Through the Entire Space This event is the first large-scale costume exhibition to be held for "THE IDOLM@STER SideM." In addition to displaying approximately 250 costumes from past live events held between 2015 and 2025, the exhibition will feature life-sized panels of all 49 characters using newly drawn visuals, and a special movie looking back at past live performances. It offers a unique experience where visitors can fully immerse themselves in the journey of 315 Production. Leveraging its extensive experience in event production, HIKE has provided comprehensive support in creating a space that cherishes the world of the work while delivering an emotional experience to producers. Exhibition Image We sincerely look forward to your visit to this costume exhibition, which encapsulates the brilliant journey of 315 Production. * Unit costumes will include outfits worn by all cast members who appeared in each performance. * For the PRODUCER MEETING 2020 common costume, outfits worn by all cast members scheduled to appear will be displayed. * For each common costume, attribute costume, and individual costume, outfits worn by a selection of representative performers for each performance will be displayed. * Please note that some costumes, accessories, and shoes may not be displayed due to various circumstances. HIKE's Main Areas of Responsibility Pr