Shabu-Shabu Onyasai Launches Limited-Time Summer Korean Hot Pot Festival Featuring 'Seafood Jjigae' and 'Kkomtang'

Shabu-Shabu Onyasai, operated by Rain's International Co., Ltd. (Colowide Group), will launch a limited-time summer festival from Wednesday, July 15, 2026, themed 'Summer Korean Feast,' offering a unique Onyasai-style experience of Korean cuisine. Prior to the launch, a media-exclusive tasting event was held on Wednesday, July 1, 2026, at the Tamachi-Mita-guchi store.

Details on 'Seafood Jjigae & Kkomtang'

At the tasting event, media guests sampled the festival's featured dishes—'Seafood Jjigae' and 'Kkomtang'—alongside Korean-inspired side dishes and desserts reflecting Korean banchan culture, while learning about the products' features and development background.

First, representatives explained the flavors of the two broths. Attendees tasted and compared the 'Seafood Jjigae,' highlighting its rich seafood umami and balanced spiciness, and the 'Kkomtang,' appreciated for its mild, soothing taste.

There was also strong interest in side dishes such as 'Three Domestic Vegetable Namul,' 'Rose Cream Tteokbokki,' 'Soy Milk Cold Noodles (Onyasai-style Kongguksu),' and 'Yogurt Ice and Lemon Bingsu,' which reflect beloved Korean table culture and summer refreshment. Attendees were seen enjoying these while conversing with staff.

Feedback included: 'The Kkomtang broth seemed light but had rich depth, making meat and vegetables taste delicious,' 'The seafood broth clearly delivered strong umami,' and 'The banchan (side dishes) are well-crafted and delicious.' The event showcased enjoyment of diverse Korean cuisine beyond just hot pots. The relaxed atmosphere allowed attendees to deepen their understanding of Onyasai's unique Korean hot pot appeal and the flexible dining experience offered by all-you-can-eat service.

Comment from Representative (Hitomi Sugiyama, Head of Marketing, Shabu-Shabu Onyasai, Rain's International Co., Ltd.)

'For this festival, we focused on blending popular Korean hot pot dishes with Japan’s traditional shabu-shabu, under the theme “Summer Korean Feast.” Korean cuisine has become widely loved and integrated into daily life in Japan. At Onyasai, while preserving the authentic charm, we’ve emphasized ease of eating and approachability to suit Japanese palates.

Our 'Seafood Jjigae' features a deep, concentrated seafood flavor, inspired by Korea’s increasingly popular seafood stews. In contrast, the 'Kkomtang' is based on Korea’s traditional beef bone soup, simmered slowly from beef and bones, enhanced to bring out rich beef umami with a smooth, gentle taste. It’s widely enjoyed in Korea as a nutritious dish, allowing full appreciation of its savory depth.

We’ve also focused on Korea’s essential 'banchan' (small side dishes) culture. Onyasai has always offered a wide variety of appetizers and specialty dishes, and leveraging this strength, we’ve introduced limited-time Korean-style small plates. Additionally, the all-you-can-eat format allows guests to freely mix and match hot pot ingredients—enjoying a Sundubu-like flavor, adding tteokbokki or flat glass noodles for personal customization—offering diverse enjoyment. We hope families and friends can gather and enjoy a rich Korean dining experience together.'

【Product Overview】Summer Korean Feast: 'Seafood Jjigae' and 'Kkomtang'

Product Name: Seafood Jjigae / Kkomtang

Sales Period: From Wednesday, July 15, 2026, to Tuesday, September 15, 2026

Available Courses:

<All-You-Can-Eat> 120 minutes (last order at 90 minutes)

· Pork Course (6 meat varieties): ¥3,980 per person (¥4,378 including tax)

· Beef Course (10 meat varieties): ¥4,280 per person (¥4,708 including tax)

· Japanese Black Beef Course (11 meat varieties): ¥5,380 per person (¥5,918 including tax)

· Marbled Japanese Black Beef Course (12 meat varieties): ¥6,880 per person (¥7,568 including tax)

※ Marbled Japanese Black Beef is not available at some locations

▶ Children under elementary school: Free; Elementary students: Half price; Seniors 60+: ¥500 discount

<Set Meal> One-time serving

· Seafood Jjigae Set Meal: ¥2,580 per serving (¥2,838 including tax)

· Kkomtang Set Meal: ¥2,580 per serving (¥2,838 including tax)

Seafood Jjigae Set Meal Kkomtang Set Meal

Details on 'Seafood Jjigae & Kkomtang'

[Limited-Time Offer] Enjoy Two Broths for a Summer Korean Feast

● Seafood Jjigae Broth with Three Types of Seafood

Seafood Jjigae is one of Korea’s representative hot pot dishes, highlighting seafood umami and chili spice. Onyasai’s version combines gochujang, chili powder, garlic, and extracts from clams, crab, and krill to create a deep, complex flavor. The rich umami from multiple seafood sources harmonizes with moderate chili heat, delivering a satisfyingly addictive 'spicy and savory' taste.

▶ Recommended Ingredients: 'Mitsumoto Pork Shabu,' 'Oshidofu' (soft tofu), 'Mochi-style Dumplings'

● Kkomtang Broth Overflowing with Beef Umami

Kkomtang, known for its pale milky-white color, is a traditional Korean soup made by simmering beef and bones. Its smooth, gentle flavor, infused with beef essence, is beloved not only as a daily meal but also for nourishment. Onyasai carefully extracts beef umami while ensuring a clean aftertaste, enhancing the natural flavors of vegetables and meats.

▶ Recommended Ingredients: 'Premium Beef Shabu,' 'Stylish Negi' (green onion)

[NEW] Yangnyeomjang

A versatile Korean seasoning made from chili, garlic, soy sauce, and ginger. Its sharp spiciness, combined with fermented umami and depth, enhances overall dish flavor. Ideal for those seeking heat or flavor variation.

[Limited-Time] Banchan (Side Dishes) Inspired by Korean Dining Tables

[NEW] Three Domestic Vegetable Namul

A classic Korean side dish made with okra, sweet carrots, and soybean sprouts. Seasoned with sesame oil and salt, with a subtle garlic aroma to enhance the ingredients’ natural sweetness and umami. A healthy, balanced dish offering crisp texture and mild flavor.

[NEW] Spicy Korean Cucumber

A spicy Korean-style cucumber appetizer finished with Yangnyeomjang. The refreshing, juicy texture of cucumber pairs perfectly with the seasoning’s moderate spiciness and umami, creating a lingering taste. Perfect as a palate cleanser or drink accompaniment.

[NEW] Rose Cream Tteokbokki

A popular Korean rose cream tteokbokki, reimagined by Onyasai with milk, fresh cream, shredded cheese, and Yangnyeomjang. The mild heat from Yangnyeomjang harmonizes perfectly with the creamy richness, offering a gentle, comforting flavor. Ideal for spice lovers