This is the signature dish. A platter arrives at your table with fresh shellfish arranged on ice. You grill each piece over a small charcoal grill built into the table. The clams pop open when ready, scallops turn opaque, squid curls. There's a ritual and theater to it. Reviewers say the freshness is remarkable.
A special preparation where crab miso (liver and roe) is mixed with seasonings and baked inside the shell. You grill it until hot and bubbling. The aroma is incredible. Reviewers call it 'especially popular' with returning customers. Rich, umami-forward, and worth the splurge.
The most popular lunch dish. Fresh tuna over warm sushi rice. Simple, reliable, and a good value at lunch. Reviewers note it's a great way to experience their seafood quality at a lower price point. Pairs well with miso soup and pickles.
A classic seafood side dish. The shrimp is fried until the exterior is golden and crispy, the interior stays juicy. Served with lemon. Part of the Manzoku Course, but can be ordered à la carte.
A beautiful presentation with tuna, salmon, scallop, and uni arranged on sushi rice. The variety lets you taste different flavors and textures. More interesting than a single-protein bowl. Good lunch value.
Isomaru Suisan operates as a 'downtown beach house' with live fish swimming in tanks. The signature experience is hamayaki (grilling your own fresh shellfish at the table). They source scallops, clams, lobster, crab, and squid, which arrive fresh and are grilled over a small charcoal grill at your table. Multiple Shibuya locations, some open 24 hours. Lunch sets are affordable; dinner skews toward parties and drinks.
The whole point is grilling at your table. Watch staff do it once, then it's easy. Clams pop when done, scallops turn opaque, squid curls. Don't overcook.
Lunch sets (¥1,200–¥1,600) are a great value. Dinner courses and hamayaki push the bill to ¥3,000+ per person. Visit lunch if you want cheaper fresh seafood.
Isomaru Shibuya is always packed and buzzing. Reservations essential on weekends. Some locations are 24 hours.
The fish-filled tanks are part of the atmosphere, making it feel like a fishing port. Ask staff which fish are freshest if you want something beyond the hamayaki set.
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