Koi Nobori (鯉登り) is not just a meal, but a performance. At this tiny, 10-seat counter in Shinjuku, the owner and grill master presides over a theatrical omakase experience focused on rare cuts and, most notably, exceptionally fresh horumon (innards). He grills every piece for you, serving it at the precise moment of perfection, often explaining the cut and the technique. This level of personal attention and craft is what sets it apart.
Guests consistently praise the quality of the horumon, with cuts like mino (first stomach), marucho (small intestine), and giara (fourth stomach) singled out as outstanding. The thick-cut tongue (atsugiri tan) and other rare red meat cuts also receive high marks. Many reviewers describe the experience as 'life-changing' and a top-tier example of yakiniku, culminating in a memorable ojiya (rice porridge), though opinions on this final dish can be divided.
Be prepared for a specific environment. The owner is a strong character, which some find engaging and others intimidating. Photography is generally forbidden. The small space and high demand make reservations essential and difficult to secure.
While the official price range is ¥15,000–¥19,999, reviewers report the omakase course is typically around ¥22,000. The final bill can vary dramatically with drink orders and any additions; some parties of two have reported totals approaching ¥100,000, while others spent around ¥35,000 per person with drinks. For those seeking the pinnacle of horumon and a unique, master-led dinner, it is considered worth the price. It is not a good choice for a casual or budget-conscious meal.
- Booking: Essential. Reservations are made via the OMAKASE platform or by phone, but slots for new customers are limited. Walk-ins are not possible.
- Payment: Cash only. Credit cards, electronic money, and QR code payments are not accepted.
- Location: A 4-minute walk from the North Exit of Okubo Station (JR Chuo-Sobu Line) or a 7-minute walk from Shin-Okubo Station (JR Yamanote Line).
- Seating: 10 counter seats only. The owner grills for all guests.
- Dress Code: Smart casual. Overly casual clothing and beachwear are not permitted.
- Rules: Photography and video are generally prohibited.
- Smoking: The entire restaurant is non-smoking.







