Manten no Yu & FLEXKEY
2026-02-03 04:25:31

The Innovative Partnership Between Manten no Yu and FLEXKEY Revolutionizes Off-Peak Bathing

A New Era for Bathing: Manten no Yu and FLEXKEY Collaboration



The bathing experience is about to be transformed thanks to an innovative partnership between Manten no Yu, a well-known natural hot spring facility in Yokohama, and FLEXKEY, a subscription service from OPTIMIST. This collaboration aims to optimize off-peak hours in health and wellness facilities, making it more profitable for both sides.

Background of the Partnership



OPTIMIST is headquartered in Tokyo and greatly values wellness culture. FLEXKEY allows users to have unlimited access during the off-peak hours at several partnered saunas and hot springs for a fixed monthly fee. This initiative has an overwhelming appeal, especially for facilities that experience empty slots during the week.

Manten no Yu is regarded for its spacious bathing area filled with various saunas and pools which are not only enjoyable but also beneficial for health and beauty. The facility is strategically located in Hodogaya Ward, Yokohama, offering high-quality services to its patrons. By teaming up with FLEXKEY, Manten no Yu aims to enhance customer footfall during typically slow hours.

Addressing the Challenges



Many bathing facilities face challenges during off-peak hours, especially in early mornings and weekdays when customer visits are low. They often resort to traditional marketing strategies, yielding unclear results and higher costs without beneficial outcomes.

Here are some issues encountered by various wellness facilities:
  • - Low visitors during peak times: Many facilities have periods where they struggle to attract customers, which leads to lost revenue.
  • - Ineffective advertising: Even with social media promotions or traditional marketing, it’s challenging to discern the actual benefits in terms of return on investment.
  • - Difficulties in increasing profitability: Investment in promotional campaigns does not always translate to higher profits.

FLEXKEY steps in to alleviate these endemic issues by providing a model that doesn’t impose a high operational burden. Complementing the existing infrastructure, the program is tailored specifically for sparse hours, allowing facilities to generate fixed income without worrying about visitor indecisiveness.

How FLEXKEY Works



Under the FLEXKEY model, facilities provide available time slots during off-peak hours, such as mornings and early afternoons, suitable for a select group of customers. This doesn’t mean exclusive reservations; rather, it allows regular customers and FLEXKEY users to coexist, ultimately maximizing the facility's utilization. Facilities receive a steady monthly income regardless of customer attendance, securing their financial stability.

The potential advantages of this partnership include:
  • - Stabilized profit margins: A consistent monthly fee ensures that facilities retain a secure revenue stream.
  • - Increased sales opportunities: More visitors during previously low traffic times can result in additional income from food, beverage, or merchandise sales.
  • - No initial costs: With no upfront fees required, facilities can implement the FLEXKEY model while maintaining their current operating structure.

Partner Special Offers



To explore this unique opportunity and possibly implement a FLEXKEY partnership, interested establishments are encouraged to request informational materials. Those reaching out will receive success stories from currently partnered facilities along with tailored revenue and profit forecasts if they join the program.

For more details about the special offers and informational materials, you can visit the information request form.

Invitation for Collaboration



FLEXKEY is enthusiastic about collaboration opportunities within the sauna and wellness industry. For media inquiries or partnership discussions, they invite you to contact via email at [email protected].

About FLEXKEY



FLEXKEY provides a monthly subscription service at a reasonable price of 5,900 yen (tax included 6,490 yen), allowing patrons to enjoy a variety of participating bathing facilities in the metropolitan area daily. Currently, the program's new membership offerings are paused but are expected to restart around February or March, with limited slots for smooth operation.

Potential subscribers are encouraged to stay connected through official social media channels to ensure they do not miss the recruitment announcements.
Links: Official Instagram | Official X

FLEXKEY aims to redefine sauna visits from a luxury experience to a regular health habit, pioneering methods to expand Japan's bathing culture while contributing to sustainable growth in the wellness industry. With their focus on wellness, they are committed to helping the population achieve a healthier lifestyle through innovative solutions including this strategic partnership with natural hot spring facilities like Manten no Yu.


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Topics Health)

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