Gokurakuyu Co., Ltd. and GK Marketing Co., Ltd. will launch their second collaboration campaign with Gakuen Idolmaster at 24 Gokurakuyu and RAKU SPA locations starting February 5, 2026. The campaign, titled "Welcome to Gokurakuyu Hyokou no Yuenchi" (Ice Crystal Bath Garden), runs through March 3, 2026.
Campaign Overview
Campaign Title: Gakuen Idolmaster × Gokurakuyu/RAKU SPA Second Collaboration Campaign "Welcome to Gokurakuyu Hyokou no Yuenchi"
Period: February 5, 2026 (Thursday) to March 3, 2026 (Tuesday)
Locations: 24 Gokurakuyu and RAKU SPA Group locations (including RAKU CAFE Ikebukuro and Shinsaibashi)
Official Collaboration Website: https://rakuspa.com/gakuen.idolmaster2/
Campaign Features
1. Limited "Gakuen Idolmaster Plus Set"
Visitors who purchase admission and the "Gakuen Idolmaster Plus Set" will receive a limited collaboration muffler towel at random. Two options are available:
- Standard Set: Choose one towel from either Set A (6 designs) or Set B (7 designs)
- Premium Set: Receive one towel from each set (A and B)
2. Collaboration Merchandise (with Novelty Items)
Original collaboration merchandise featuring newly illustrated artwork will be available for purchase. The items will also be sold through the official Gokurakuyu online shop starting February 5 at 12:00 PM.
Online Shop: https://www.store-gk.com/
For every 2,000 yen (tax included) spent on collaboration merchandise, customers will receive one randomly selected Japanese-style washi sticker featuring newly illustrated artwork (13 designs available).
Note: The Gakuen Idolmaster Plus Set and online shop purchases are excluded from the novelty promotion. Multiple separate purchases cannot be combined. Items are available while supplies last.
3. Collaboration Menu (with Novelty Items)
Special menu items inspired by the idols will be available. Customers who order collaboration menu items will receive a randomly selected original coaster (13 designs).
A sticker rally will also be held during the campaign period.
4. Themed Collaboration Baths
Four types of special baths inspired by Hatsuhoshi Gakuen (the school where the idols study) and class colors will be featured. Specially designed bath tapestries will decorate the bathing areas.
Note: This feature is not available at RAKU CAFE locations.
5. Decorations and Character Photo Frames
Participating locations will be decorated with panels, banners, tapestries, and posters featuring the idols. Visitors can scan QR codes on the idol profile posters to access digital photo frames and take pictures with their favorite characters.
6. X (Twitter) Campaign
Follow the official Gokurakuyu/RAKU SPA and GK Store X accounts, post about the collaboration with the hashtag #学マス極楽湯, and show your post at the reception desk to receive:
- A limited collaboration design postcard (4 designs available, distributed by period)
- A lottery ticket for a chance to win decorations used during the campaign
Note: Decorations may have minor wear or imperfections. Design selection is not available.
Official X Accounts:
- Gokurakuyu/RAKU SPA: https://x.com/gokurakuyu_spa
- GK Store: https://x.com/GKMarketinginfo
Important Notes
- All images are for illustration purposes only
- Purchase limits may apply to merchandise and prizes
- Distribution and exchange hours follow each location's operating hours
- Campaign details are subject to change without notice
- The campaign may be modified or canceled depending on circumstances
For complete campaign details, participating locations, and additional terms, visit the official collaboration website: https://rakuspa.com/gakuen.idolmaster2/
About Gakuen Idolmaster
Gakuen Idolmaster is the latest entry in the IDOLM@STER series, launched in 2024. Players enroll in Hatsuhoshi Gakuen, an idol training school, and take on the role of producer for aspiring idols, each with their own unique challenges and charms. The franchise includes mobile game apps, CDs, merchandise, and live events.
- Official Website: https://gakuen.idolmaster-official.jp/
- Official X: @gkmas_official
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.
