Eleven Gokurakuyu and RAKU SPA super sento locations are teaming up with Sumikkogurashi for a special collaboration campaign from August 6 (Thursday) to August 25 (Tuesday), 2026.
The campaign features Sumikkogurashi-themed collaboration baths, character panels, banners, and photo-with-plush spots, along with collaboration merchandise, collaboration menu items, and more.
Gokurakuyu: https://www.gokurakuyu.ne.jp/
RAKU SPA: https://www.rakuspa.com/
Collaboration Website: https://rakuspa.com/sumikkogurashi/
Campaign Overview
Gokurakuyu & RAKU SPA × Sumikkogurashi Collaboration Campaign
Duration: August 6 (Thursday) - August 25 (Tuesday), 2026
Participating Locations: 11 Gokurakuyu and RAKU SPA locations
*See the collaboration website for participating locations.
Campaign Features:
- Collaboration merchandise (with in-store purchase bonus)
- Collaboration menu items (with coasters)
- Sumikkogurashi-themed collaboration baths
- Character panels, banners, and photo-with-plush spots and other decorations
- Workshop to make original merchandise (RAKU SPA Tsurumi only)
- Greeting event featuring Tokage (RAKU SPA Tsurumi only)
- Social media campaign with an original sticker gift
1. Collaboration Merchandise (With In-Store Purchase Bonus)
Various merchandise featuring newly drawn illustrations will be available for purchase.
Online sales will also run from 1:00 PM on August 6 (Thursday) through September 6 (Sunday).
In-Store Exclusive: Muffler Towel - one of three designs, distributed at random.
- Muffler Towel (3 designs, random) - 1,100 yen (tax included)
- Nukunuku Plush (5 designs) - 2,310 yen each (tax included)
- Awa Awa Flake Stickers (7 stickers per pack) - 880 yen (tax included)
- Aurora Locker-Key-Style Keychain Collection (9 designs, random) - 880 yen (tax included)
- Acrylic Mirror Sticker Collection (6 designs, random) - 770 yen (tax included)
- Mini Acrylic Stand Collection (6 designs, random) - 880 yen (tax included)
- Sparkle Can Badge Collection (7 designs, random) - 550 yen (tax included)
Merchandise Purchase Bonus
For every 2,000 yen (tax included) spent on merchandise, guests will receive one washi-style sticker.
*Muffler towels and online shop purchases are not eligible for this bonus.
*Washi-style stickers are available while supplies last.
*Separate transactions cannot be combined for this bonus.
Online Shop (GK Store)
Online sales begin at 1:00 PM on August 6 (Thursday).
Sales Period: August 6 (Thursday), 2026, 1:00 PM - September 6 (Sunday), 11:59 PM
Online Shop URL: https://www.store-gk.com/
2. Collaboration Menu (With Coasters)
Various Sumikkogurashi-themed menu items will be available at participating locations. Guests who order will receive an original coaster at random.
Food and Desserts (6 items):
- Shirokuma's Marshmallow Snow Parfait - 1,430 yen (tax included)
- Penguin?'s Favorite Chilled Cucumber Ramen - 1,980 yen (tax included)
- Tonkatsu-Ebi's Fired-Up Curry - 2,200 yen (tax included)
- Neko's Hide-and-Seek Waffle Sandwich - 1,980 yen (tax included)
- Tokage's Favorite Fish Burger - 2,200 yen (tax included)
- Onsen Manju (RAKU CAFE exclusive menu item) - 990 yen (tax included)
Drinks (6 items, 990 yen each, tax included):
- Shirokuma's Cozy Moment Shiratama Houjicha Latte
- Penguin?'s Treat Melon Soda
- Tonkatsu's Crispy Caramel Milk
- Neko's Soothing Matcha Milk
- Tokage's Ocean-Colored Cream Soda
- Ebi Fry Tail's Strawberry Milk
Sticker Rally
Guests who order five collaboration menu items will receive one additional original coaster through a sticker rally.
3. Sumikkogurashi-Themed Collaboration Baths
Five types of Sumikkogurashi-themed collaboration baths will be featured, with specially designed tapestries decorating the bathing areas.
4. Character Panels, Banners, and Photo-with-Plush Spots
Participating locations will be decorated with Sumikkogurashi character panels, banners, tapestries, and photo-with-plush spots throughout the facility.
5. Original Merchandise Workshop (RAKU SPA Tsurumi Only)
A workshop where guests can make their own original merchandise will be held over two days, August 8 (Saturday) and August 9 (Sunday).
6. Meet Tokage Greeting Event (RAKU SPA Tsurumi Only)
A greeting event featuring Tokage will be held on August 22 (Saturday).
*See the collaboration website for details on how to participate.
7. Social Media Campaign: Original Sticker Gift
Guests who follow the official Gokurakuyu/RAKU SPA X account and GK Marketing's official X account, then post about the collaboration with the hashtag "#すみっコ極楽湯," will receive an original sticker at the facility reception on a first-come, first-served basis.
*Admission must be purchased to redeem the original sticker.
Official Gokurakuyu/RAKU SPA X: @gokurakuyu_spa
https://x.com/gokurakuyu_spa
Official GK Marketing X: @GKMarketinginfo
https://x.com/GKMarketinginfo
Important Notes
*All images are for illustrative purposes only.
*Purchase limits may apply to merchandise and prizes.
*Details are subject to change without notice.
*The campaign may be modified or cancelled depending on circumstances.
*For full details, terms and conditions, and participating locations, please visit the collaboration website.
Collaboration Website:
https://rakuspa.com/sumikkogurashi/
About Sumikkogurashi
Sumikkogurashi is a character brand born in 2012 around the concept of "It's calming in the corner." The characters and stories are cute but also a little melancholic and quirky, and they have won over fans across many age groups. When riding a train, corner seats fill up first; at a cafe, people often want the corner seat if they can get one - the Sumikko characters embody that very relatable feeling.
Learn more: https://www.san-x.co.jp/ja/characters/sumikkogurashi/
Official Sumikkogurashi X: https://x.com/sumikko_335
