Sauna and Bathhouse Subscription "FLEXKEY" Expands Partner Facilities to 41
OPTIMIST Inc.'s "FLEXKEY," a flat-rate subscription service for saunas and bathhouses during off-pea… · 2026-03-31
株式会社OPTIMIST News Releases
Sauna and Bathhouse Subscription "FLEXKEY" Expands Partner Facilities to 41
OPTIMIST Inc.'s "FLEXKEY," a flat-rate subscription service for saunas and bathhouses during off-pea… · 2026-03-31
Sauna Subscription 'FLEXKEY' for Daily Access Opens New Member Recruitment on June 1st (Mon)
OPTIMIST's sauna subscription service 'FLEXKEY' will begin recruiting new members on June 1st. For 5… · 2026-05-28
Sauna Subscription Service 'FLEXKEY' Adds 4 Partner Facilities from May, Totaling 44 Available Facilities for Daily Use
Sauna and bathing facility subscription service 'FLEXKEY' will expand its partner facilities by 4 fr… · 2026-04-30
Sauna & Bath Subscription "FLEXKEY" Expands to 41 Partner Facilities
FLEXKEY expands its partner facilities to 41, marking a full-scale launch in the Nagoya area. · 2026-03-31
Sauna and Bathhouse Subscription "FLEXKEY" Expands Partner Facilities to 41
OPTIMIST Inc.'s "FLEXKEY," a flat-rate subscription service for saunas and bathhouses during off-pea… · 2026-03-31
Sauna Subscription Service 'FLEXKEY' Adds 4 Partner Facilities from May, Totaling 44 Available Facilities for Daily Use
Sauna and bathing facility subscription service 'FLEXKEY' will expand its partner facilities by 4 fr… · 2026-04-30