Isomaru Suisan
Retailer / private label
UnclaimedA Japanese seafood izakaya chain known for its 'Isomaru-yaki' tabletop grilling style and 24-hour operations.
Last updated September 26, 2026
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Overview
Isomaru Suisan is a seafood izakaya chain operated by SFP Dining under Create Restaurants Holdings. It is primarily found in the Kantō and Kansai regions of Japan. The chain is known for its unique 'Isomaru-yaki' style, where customers grill fresh seafood themselves on tabletop grills, evoking a fisherman's beachside grill atmosphere. The first store opened in February 2009 in Kichijōji, Musashino, Tokyo. It expanded to the Kansai region in August 2013, reached 50 stores in December 2013, and 100 stores in May 2015. The chain has become popular among Chinese tourists for its affordable seafood. Its name has also inspired the slang term 'Okeru Suisan' among Japanese schoolgirls.
History
Isomaru Suisan opened its first store in February 2009 in Kichijōji, Musashino, Tokyo. The chain introduced a unique style called 'Isomaru-yaki,' where customers grill fresh seafood themselves on tabletop grills, inspired by fisherman's beachside grilling. The interior is designed to resemble a bright beach house or squid fishing boat, and stores operate 24 hours. In August 2013, the chain expanded into the Kansai region. By December 2013, it had reached 50 stores, and by May 2015, it had 100 stores. The chain has become popular among Chinese tourists for its inexpensive seafood. Its name has also spawned the slang term 'Okeru Suisan' among Japanese schoolgirls.
First store opened in Kichijōji, Musashino, Tokyo
Expanded into the Kansai region
Reached 50 stores
Reached 100 stores
Products and positioning
Affordable seafood izakaya with a lively, fisherman's beach house atmosphere, open 24 hours.
Isomaru-yaki
Tabletop grilling of fresh seafood
Crab miso shell grill
Grilled crab miso in shell
Sashimi
Fresh raw fish
Sources3 sources
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