From July 7 to August 24, 2026, the popular sushi chains Nigiri no Tokubei and Kaisen Atom are hosting a limited-time summer sushi festival featuring fresh seasonal aji (Japanese horse mackerel) from Nagasaki and large-cut eel from Mikawa Isshiki. This event offers sushi lovers a chance to enjoy a variety of 23 specially curated dishes perfect for the summer season.
Visitors to Japan during the summer can savor high-quality, locally sourced seafood known for its rich flavor and freshness. The festival highlights premium ingredients like the fatty and flavorful aji caught in the nutrient-rich waters near Tsushima Strait and the Goto Islands, as well as large, tender female eel from Mikawa Isshiki. Alongside sushi, refreshing side dishes such as chilled clam soba and cold chawanmushi with Yamagata-style dashi provide a cool and satisfying meal experience during Japan’s hot summer months.
About the Summer Sushi Festival at Nigiri no Tokubei and Kaisen Atom
The festival features a diverse lineup of sushi and side dishes, focusing on seasonal and regional specialties. Nigiri no Tokubei, mainly operating in the Tokai region with 43 stores, and Kaisen Atom, with 9 stores in Fukui Prefecture, offer this event across 52 locations. The menu includes standout items like the popular summer special five-piece sushi set, seasonal aji with plum-flavored namerou miso, large-cut grilled eel nigiri, and seared nodoguro (blackthroat seaperch) known as “white tuna of the sea.” The event also introduces new chilled dishes to help diners enjoy a light yet flavorful summer meal.
Highlights
- Summer Special Five-Piece Sushi Set – ¥1,265 (includes kampachi, seasonal aji, octopus, Mikawa Isshiki eel, and whelk with wasabi)
- Seasonal Aji with Plum-Infused Namerou Miso – ¥451
- Large-Cut Grilled Eel from Mikawa Isshiki – ¥539
- Seared Nodoguro (Blackthroat Seaperch) Nigiri – ¥649
- Double-Layered Hand-Wrapped Eel with Butter – ¥539
- Chilled Side Dishes like Clam Soba – ¥539 and Yamagata Dashi Chawanmushi – ¥363
- Summer Limited Lunch Menu featuring seasonal nigiri – ¥1,738
The festival menu also includes other sushi varieties such as white grilled eel, kinmedai (splendid alfonsino) from Chiba, and rich uni avocado mini bowl, as well as side dishes like fried red shrimp and potato snacks. The lunch menu, available on weekdays until 5 p.m. (some stores until 4 p.m. on Saturdays), offers an affordable way to enjoy fresh seasonal sushi with free refills of daily miso soup.
Both Nigiri no Tokubei and Kaisen Atom focus on delivering fresh, high-quality sushi using traditional techniques. Nigiri no Tokubei emphasizes freshness and regional ingredients, while Kaisen Atom highlights local Fukui specialties alongside classic sushi favorites. The festival is a great opportunity to experience Japan’s summer seafood culture in a casual conveyor belt sushi setting.
Menu & Event Details
| Item | Details |
|---|---|
| Name | Summer Sushi Festival “Seasonal Aji and Summer Big Catch Festival” |
| Menu / items | Seasonal Aji (Toki Aji), Seasonal Aji with Plum Namerou Miso, Large-Cut Grilled Eel Nigiri, Large-Cut White-Grilled Eel Nigiri, Seared Nodoguro Nigiri, Kinmedai from Chiba, Uni Avocado Mini Bowl, Chilled Clam Soba, Yamagata Dashi Cold Chawanmushi, Double-Layered Hand-Wrapped Eel with Butter, Summer Special Five-Piece Sushi Set, and more (total 23 items) |
| Location | Nigiri no Tokubei and Kaisen Atom sushi restaurants across Japan |
| Address | 3-10-14 Sakae, Naka-ku, Nagoya 1-2-3 Chuo, Fukui City, Fukui |
| Period | July 7, 2026 (Tue) – August 24, 2026 (Mon) |
| Price | Seasonal Aji ¥407; Seasonal Aji with Plum Namerou Miso ¥451; Large-Cut Grilled Eel Nigiri ¥539; Large-Cut White-Grilled Eel Nigiri ¥539; Seared Nodoguro Nigiri ¥649; Kinmedai ¥869; Uni Avocado Mini Bowl ¥649; Chilled Clam Soba ¥539; Yamagata Dashi Cold Chawanmushi ¥363; Double-Layered Hand-Wrapped Eel with Butter ¥539; Summer Special Five-Piece Sushi Set ¥1,265; Summer Limited Lunch Menu ¥1,738 (all tax included) |
