Perhaps the best Fugu restaurant out there. The restaurant is right next to the port which means their Fugu are the most fresh. The price at which they offer them is also near half price of major cities. Absolutely the best Fugu restaurant in Japan imo.
The owner is also super friendly.

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For a truly authentic taste of Shima, you have to visit Marusei, a restaurant run by a local wholesaler known for its fresh, wild-caught Anori Fugu. This natural tiger pufferfish is considered the king of winter delicacies and is served here in a variety of ways, from delicate sashimi to rich hot pot. Beyond fugu, they also offer incredible Ise lobster and other seasonal seafood, ensuring a memorable meal any time of year.