HIKE to Produce 'THE IDOLM@STER SideM STAGE COSTUME MUSEUM,' the First-Ever Costume Exhibition for 'THE IDOLM@STER SideM,' with On-Site Ticket Sales Confirmed

HIKE Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; President and CEO: Masataka Mika, hereinafter referred to as 'HIKE'), a company engaged in entertainment businesses including anime and games, announces that it has taken charge of the planning, construction, and operation for the first-ever costume exhibition of 'THE IDOLM@STER SideM,' titled 'THE IDOLM@STER SideM STAGE COSTUME MUSEUM' (to be held from July 10, 2026, at BEAM Gallery in Shibuya BEAM), hosted by BANDAI NAMCO Entertainment Inc.

Creating a Memorial Exhibition Where the Work’s Journey Can Be Felt Throughout the Space

This event marks the first large-scale costume exhibition for 'THE IDOLM@STER SideM.' It will showcase approximately 250 costumes from live events held between 2015 and 2025, life-size panels of all 49 characters featuring newly drawn visuals, and special videos reviewing past live performances, offering a special experience to fully appreciate the journey of 315 Production.

Leveraging its extensive expertise in event production, HIKE has comprehensively supported the creation of a space that honors the work’s worldview and delivers emotional impact to producers.

Exhibition Concept

We sincerely welcome all visitors to this exhibition, which encapsulates the brilliant journey of 315 Production.

※ Unit costumes will include outfits worn by all cast members who appeared in each performance.

※ PRODUCER MEETING 2020 common costumes will include outfits of all cast members scheduled to appear.

※ For common costumes, attribute costumes, and individual costumes, only selected representatives’ outfits will be displayed per performance.

※ Due to various circumstances, some costumes, accessories, shoes, etc., may not be exhibited. Please understand in advance.

HIKE’s Main Responsibilities

Production

Planning of an immersive exhibition flow and presentation design that allows visitors to experience the work’s journey alongside the costumes.

Construction

Design and construction of exhibition booths to maximize the appeal of each of the approximately 250 valuable costumes.

Operation

Establishing smooth event management and operations to ensure visitors can enjoy the event safely and comfortably, including partial costume replacements during the exhibition period.

Event Overview

Event Name

THE IDOLM@STER SideM STAGE COSTUME MUSEUM

Dates

July 10 (Fri) – July 16 (Thu), 2026

July 18 (Sat) – July 27 (Mon), 2026

※ July 17 (Fri) will be closed all day for exhibition changeover work.

Admission Hours

Weekdays: 12:00–21:30 / Weekends and Holidays: 10:00–21:30 (Closed at 22:00)

Venue

BEAM Gallery, Shibuya BEAM

https://venues.theatre-workshop.co.jp/beam-gallery/

Official Event Website

https://idolmaster-official.jp/live_event/sidem_stage_costume_museum/

Organizer & Planning: BANDAI NAMCO Entertainment Inc.

Production: HIKE Co., Ltd.

Copyright: THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.

General Sale 2nd Round (First-Come, First-Served) Ongoing; On-Site Ticket Sales Confirmed

Tickets are currently available through the second round of general sale (first-come, first-served). Additionally, on-site ticket sales have been confirmed and are announced here.

[General Sale 2nd Round (First-Come, First-Served)]

Eligible Ticket Type: Admission Ticket

※ The second round of general sale (first-come, first-served) does not include admission tickets with goods.

※ Time slots sold out during the first general sale (first-come, first-served) will not be available in the second round. Please note in advance.

※ Applications will be accepted only via digital tickets.

Application URL

https://asobiticket2.asobistore.jp/booths/sidem-260710

Purchase Limit

Up to 2 tickets per person per performance (multiple time slots allowed)

※ Applications are available for all dates.

Admission for July 18 (Sat) – July 22 (Wed)

May 22, 2026 (Fri) 18:00 –

July 6, 2026 (Mon) 23:59

Payments made after 00:00 on July 4, 2026 (Sat) must be by credit card only.

Admission for July 23 (Thu) – July 27 (Mon)

May 22, 2026 (Fri) 18:00 –

July 8, 2026 (Wed) 23:59

Payments made after 00:00 on July 6, 2026 (Mon) must be by credit card only.

[On-Site Tickets]

Eligible Ticket Type: Admission Ticket

※ Time slots sold out during the second round of general sale (first-come, first-served) will not be available for on-site purchase. Please note in advance.

※ On-site tickets will be paper tickets.

Sales Period

From venue opening time until 15 minutes before each session ends

※ For sessions starting at 11:00, tickets can be purchased until 11:45.

※ Venue Opening Times

・Weekdays: 12:00–　・Weekends and Holidays: 10:00–

Sales Location

Sales Counter, 1st Floor, Shibuya BEAM

Purchase Limit

Up to 2 tickets per person per performance (multiple time slots allowed)

Payment Methods

Credit card, QR code, and electronic money payments accepted.

Supported Credit Card Brands

VISA / Mastercard / JCB / American Express / UnionPay / Discover / DinersClub

Supported QR Payments

PayPay / d-payment / au PAY / Alipay+ / WeChat Pay

Supported Electronic Money Payments

Transportation IC Cards (Suica, PASMO, ICOCA, Kitaca, TOICA, manaca, SUGOCA, nimoca, hayakaken) / iD / QUICPay

※ Credit card payments are accepted only as one-time payments.

※ Even if the logos of the above companies are displayed due to credit card partnerships, usage may not be possible.

※ Usage may not be possible due to network conditions or other circumstances.

[Important Notes]

・Applications are accepted on a first-come, first-served basis and will close once the quota is reached.

・Admission benefits will be distributed at the venue upon entry on the event day. No later distribution or shipping will be available.

・Please check the 'Q&A' section for details.

・Children under school age are not permitted.

・Elementary school students and younger must be accompanied by a guardian (18 years or older).

・Please read and agree to the ASOBI STORE Terms of Use and the content of this page, and review the 'Ticketing Notes' on the official event website before applying.

・Resale prevention: Resale tickets are not permitted for entry. Listing on auctions or other platforms is prohibited. All disruptive behavior is strictly forbidden.

・Opening hours and exhibition content may change due to circumstances. No refunds will be issued for ticket fees, transportation costs, etc., due to such changes. Please understand in advance.

・Bringing in alcoholic beverages and entering under the influence are strictly prohibited.