Shabu-Shabu Onyasai

Quick Facts

What it is

Shabu-Shabu Onyasai (しゃぶしゃぶ温野菜), operated by restaurant powerhouse REINS International (Colowide Group), is universally celebrated as Japan's premier nationwide all-you-can-eat shabu-shabu institution. Rejecting generic buffets, Onyasai pairs finely marbled cuts of Kuroge Wagyu (Japanese Black Beef) and carefully selected tender pork with farm-direct, certified domestic vegetables harvested fresh from partner Japanese growers. Diners receive a signature divided yin-yang hotpot bubbling on an induction burner, allowing guests to choose two distinct broths simultaneously—such as sweet Sukiyaki with fresh raw eggs alongside rich savory soy milk broth or fiery Szechuan spicy mala dashi. With dozens of unlimited appetizers, gourmet mushrooms, fresh greens, noodles, and decadent desserts ordered seamlessly through multilingual tablets with zero cover charge, it is the gold standard of Japanese hotpot feasting.

How to order

Dining at Shabu-Shabu Onyasai is straightforward, high-tech, and indulgent:

1. Be seated by staff: Step inside. Staff will welcome you and seat your party at a comfortable booth featuring an integrated flush-mount induction cooktop.
2. NO Otoshi cover charge: Enjoy honest dining—Onyasai charges strictly zero table fee and zero cover charge (¥0 Otoshi)!
3. Choose your All-You-Can-Eat Course (120 Minutes):
   • Sangen Pork Course (三元豚コース): Unlimited Sangen-brand pork loin and pork belly (~¥3,718).
   • Selected Beef Shabu Course (特選牛しゃぶコース): Unlimited specially selected beef brisket and pork (~¥4,158).
   • Onyasai Course (温野菜コース): The house course, adding the full signature vegetable lineup (~¥4,378).
   • Kuroge Wagyu Course (黒毛和牛コース): Melt-in-your-mouth Japanese Black Wagyu beef slices with gorgeous marbling (~¥5,478).
   • Shimofuri Kuroge Wagyu Course (霜降り黒毛和牛コース): The ultimate luxury; heavily marbled frost-streaked Wagyu (~¥7,128).
4. Choose 2 custom soup broths for your divided pot:
   • Kombu Dashi (極みだし - Golden Kelp & Bonito): Pure umami; ideal for dipping in ponzu and sesame tare.
   • Sukiyaki Broth (すき焼きだし): Sweet savory soy dashi; served with raw farm-fresh eggs for dipping!
   • Mellow Soy Milk Dashi (豆乳だし): Creamy, silky, and comforting.
   • Spicy Mala Hotpot Dashi (火鍋だし): Fiery chili oil and Chinese medicinal herbs with an addictive spicy kick.
   • Rich Chicken White Broth (鶏白湯だし): Deep chicken collagen broth.
5. Switch tablet to English & start ordering: Tap the tabletop tablet in English to order:
   • Meats: Thinly sliced Wagyu, beef, pork loin, pork belly, and chicken tsukune tubes.
   • Fresh Vegetables: Sweet lettuce, leeks, baby bok choy, and 8+ varieties of Japanese mushrooms (enoki, maitake, king oyster).
   • Appetizers & Tapas: Salted edamame, spicy cucumber, quail eggs, and mozzarella skewers.
6. The "Shabu-Shabu" Cooking Technique:
   • Pick up a paper-thin slice of meat with your chopsticks.
   • Swirl it gently back and forth through the bubbling broth (saying "shabu... shabu...") until the colour changes.
   • Beef needs only a brief swish, but pork and chicken must be cooked until no pink remains — Japan's health ministry warns that undercooked pork and chicken can cause food poisoning, so never treat a few seconds as a safety rule. Then dip into tangy citrus Ponzu or nutty rich Goma (Sesame) sauce!
7. Finish with noodles & dessert: Cook ramen noodles or udon directly in the concentrated broth. Each guest also receives a complimentary gourmet dessert (matcha tiramisu, vanilla ice cream, or seasonal parfaits)!
8. Settle your bill: Tap "Checkout" on the tablet, take your table bill clip to the front register, and pay via cash, credit card, Suica, or smartphone QR codes.

What to order first

Dishes below reflect core brand staples officially featured on the Shabu-Shabu Onyasai Official Website:

• Kuroge Wagyu Shabu-Shabu (黒毛和牛しゃぶしゃぶ): Intricately marbled Japanese Black Beef that melts like butter on the tongue after a quick swish through the broth (~¥5,478 all-you-can-eat course tax-included).
• Selected Pork Loin & Belly (厳選豚ロース・豚カルビ): Sweet, tender Japanese pork slices that pair heavenly with the soy milk and spicy mala broths.
• Handmade Chicken Tsukune in Bamboo Tube (竹筒鶏つみれ): Seasoned minced chicken paste squeezed into the bubbling broth with a wooden spatula to make juicy meatballs.
• Trophy Farm-Fresh Lettuce (しゃぶしゃぶレタス): Sweet domestic crisp lettuce; swish in broth for just 3 seconds for an unforgettable crunchy sweetness!
• Onyasai Soft-Serve Ice Cream / Matcha Tiramisu (温野菜アイス・抹茶ティラミス): Decadent dessert finale served with brown sugar syrup and roasted soybean powder.

Payment & practical info

Prices and details checked: October 2026.

• Pricing & Value: Phenomenal all-you-can-eat value; courses cost ~¥3,718–¥7,128 for 120 minutes of unlimited meats, organic vegetables, and appetizers with zero cover charge.
• Cover Charges: Strictly zero cover charge and zero seating fee (¥0 Otoshi).
• Payment Methods: Accepts Japanese Yen cash, major credit cards (Visa, Mastercard, JCB, Amex, Diners Club, UnionPay), Japanese transit IC cards (Suica, PASMO, ICOCA), electronic money (iD, QUICPay), and mobile QR codes (PayPay, Rakuten Pay).
• Atmosphere: Modern, warm, and inviting. Dark wood accents, soft recessed lighting, and spacious privacy booths equipped with efficient steam hoods.
• Child Discounts: Children under elementary school age eat 100% FREE, and elementary school children receive 50% OFF the course price, making it extraordinarily popular for families!

Good to know / Common mistakes

• Don't overcook the meat — but cook pork through!: Slices are cut paper-thin, so beef needs only a brief swish; leave any slice boiling too long and it turns tough and loses its delicate sweet fat. Pork and chicken are the exception to the quick dip: swish them until the colour has fully changed and no pink remains before eating.
• Shabu the lettuce for only 3 seconds: Don't dump the fresh lettuce into the pot like stew. Pick up a leaf with chopsticks, submerge it for 3 seconds until bright green, and eat immediately while it retains its crisp crunch!
• Two broths for maximum variety: Always pair two contrasting broths—for instance, pick sweet Sukiyaki (great for rich beef dipped in raw egg) alongside refreshing Golden Kombu Dashi (perfect for pork and fresh vegetables dipped in ponzu).
• Order dessert before the timer runs out: The tablet displays a 120-minute countdown clock (last food order is at 90 minutes). Remember to order your dessert before the final cutoff!
• No tipping: Tipping is never accepted. Pay the exact bill at the front desk.

Sources

• Shabu-Shabu Onyasai Official Website: https://www.onyasai.com/ (Verified: 2026-10-01)
• REINS International Corporate Portal: https://www.reins.co.jp/ (Verified: 2026-10-01)