Yostar, Inc.’s popular smartphone game “Azur Lane,” which anthropomorphizes warships, will hold its annual “Azur Lane Sento” event at three locations this year.

Kicking off at Tatsumi Onsen in Osaka on November 14, 2026, followed by Waon no Yu in Ishikawa—making its debut this year—starting November 21, and Daikoku-yu in Tokyo starting November 28. Visitors can enjoy merchandise featuring newly drawn illustrations of the characters in yukata, as well as special collaboration baths.

Azur Lane “Public Bath Collaboration 2026” Event Overview

The Azur Lane public bath collaboration, which began at Daikoku-yu in 2022, is celebrating its 5th anniversary this year.
This year, for the first time, the event will also be held at Waon-no-yu in Ishikawa Prefecture, and will kick off sequentially at all three facilities.

*Please note that the facility is also used by customers not participating in the collaboration event
*Admission to the bathing area may be restricted depending on crowd levels
*Photography is prohibited in designated areas such as the changing rooms and bathing area

In addition to the Tatsumi Onsen’s “Mirror Advertisement” campaign, special events celebrating the 5th anniversary of the public bath collaborations will be held in various locations.
In addition to merchandise available at all three facilities, this year’s highlight is that each facility offers a unique experience.

Azur Lane “Public Bath Collaboration 2026” Common Merchandise & Bathing Tickets

The “The Public Bath (Romance) Set You’ve Been Waiting For,” a bathing ticket bundle with merchandise, includes a bathing ticket and an original hand-painted tenugui at all three facilities.
The merchandise lineup includes eight items, such as acrylic stands, bust-up acrylic stands, and a milk bottle-style glass & towel set.

*The list of merchandise is based on what is available at Tatsumi Onsen and Daikoku-yu. Products available at Waon no Yu are not listed in the announcement PDF
*Purchase Limit: Up to 3 selectable items and up to 10 random items (applies to all 3 facilities)
*You cannot choose the design for the tenugui

Tatsumi Onsen (Osaka) for Azur Lane’s “Sento Collaboration 2026”

At “Tatsumi Onsen,” an all-night public bath in Nagai, Osaka, a “Collaboration Room”—a rest area decorated in a collaboration theme for the first time this year—will be introduced.
Collaboration drinks and craft beers will also be available for purchase.

*For the collaboration room, an extension fee of 500 yen per hour will apply after the allotted time has passed
*Bottled beer will be served already opened. Not sold to those under 20 or to drivers
*Sales are scheduled to switch to a first-come, first-served basis without numbered tickets after 4:00 PM

Azur Lane “Public Bath Collaboration 2026”: Waon no Yu (Ishikawa)

At “Waon no Yu” in Ishikawa Prefecture—hosting its first event this year—a collaboration-themed entrance curtain crafted by “Somen Hiraikiya,” a long-established dyeing shop in Kanazawa City, will be displayed at the entrance.
Hirakiya is a dyeing shop with a history of over 250 years that has been dyeing kimonos and flags as a purveyor to the Kaga Domain since the Edo period.

At the Kaga Yuzen Hall in Kanazawa, a collaborative Kaga Yuzen collection featuring designs of Kaga, Hood, and Mikasa will be on display in conjunction with the collaboration at Waon no Yu.

Azur Lane “Sento Collaboration 2026” at Daikoku-yu (Tokyo)

At Daikoku-yu, the birthplace of the public bath collaboration, collaborative murals by public bath painter Mizuki Tanaka and “Azur Lane Public Bath Collaboration Lanterns” featuring Edo-style calligraphy will be on display.
Collaboration menus will be available at sister locations Kogane Kitchen and BATHE, and special events exclusively for men and women will also be held.

*Cash only for Daikokuyu merchandise purchases
*A LivePocket account with phone verification is required to apply
*Please refrain from waiting in line before the merchandise sales start time
* Information on sold-out items will be posted on Daikoku-yu’s official X

Azur Lane “Public Bath Collaboration 2026” Frequently Asked Questions

Where will it be held?

Three facilities: Tatsumi Onsen in Osaka (November 14–December 9), Waon no Yu in Ishikawa (November 21–December 13), and Daikoku-yu in Tokyo (November 28–December 21).

How much is the bath ticket that comes with merchandise?

At all three facilities, the “The Sento You’ve Always Dreamed Of (Romance) Set” costs 1,600 yen (tax included) and includes one bath ticket and one original tenugui (one of six random designs).

Do I need a numbered ticket on the first day?

For merchandise sales on the first day of the collaboration at each facility, numbered tickets (first-come, first-served) will be distributed online in advance. Daikoku-yu will also distribute them on the second day, November 29. Apply via the LivePocket page for each facility.

Are there purchase limits on merchandise?

You can select up to 3 items, and up to 10 random items.

What are the special events at each facility?

Tatsumi Onsen features a collaboration room; Waon no Yu features an entrance curtain by Kanazawa dyeing workshop Hirakiya; and Daikoku-yu features collaborative murals and special events.

Please check the official website for details.
*Please note that the information in these articles may be outdated; we kindly ask that you verify the details on the official website.

© 2017 Manjuu & YongShi © 2017 Yostar