Nakai-ya
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A compact counter-style ramen shop sitting steps from Nakai Station's exit, with a no-frills ticket vending machine ordering system and 21 seats spread across a lively counter and three tables. The specialty is Yokohama Iekei-style ramen — a rich, creamy tonkotsu-soy sauce broth served with thick straight noodles, chashu pork, spinach, and nori. Salt tonkotsu and tsukemen (dipping noodles) are also available. Rice is free all day with unlimited refills for ramen orders, and the kitchen stays open until 1:20 AM.
Address
1-chōme-18-7 Nakaochiai, Shinjuku City, Tokyo 161-0032, Japan
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Hours
Today
Open now11:00 – 01:20
Monday
11:00 – 01:20
Tuesday
11:00 – 01:20
Wednesday
11:00 – 01:20
Thursday
11:00 – 01:20
Friday
11:00 – 01:20
Saturday
11:00 – 01:20
Sunday
11:00 – 01:20
Features
Walk-in onlyNon-smokingCash onlyCompact counter-style neighborhood ramen shop21 seats (9 counter, 12 table)Ticket vending machineYokohama Iekei tonkotsu-soy sauce ramenFree rice with unlimited refills (ramen orders)Open until 1:20 AM daily
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Menu
* The menu was scanned by a user, not uploaded by the owner. There may be inaccuracies.
Tonkotsu Soy Sauce Ramen
Tonkotsu Salt Ramen
Specialty Ramen
Tsukemen (Dipping Noodles)
Sides and Drinks
Tonkotsu Soy Sauce Ramen
Tonkotsu Ramen (Soy Sauce)
The signature bowl — rich, creamy pork bone broth seasoned with soy sauce, served with thick straight noodles, chashu pork, spinach, and nori seaweed. The classic Yokohama Iekei style.
¥760
Tonkotsu Special (Soy Sauce)
The loaded special bowl with soy sauce tonkotsu broth, featuring double chashu (2 slices), a soy-marinated soft-boiled egg, and extra nori (5 sheets). A complete, value-packed set.
¥960
Tonkotsu with Seasoned Egg (Soy Sauce)
Tonkotsu soy sauce ramen topped with a soy-marinated soft-boiled egg (ajitsuke tamago) with a jammy yolk. Standard noodles, chashu, spinach, and nori included.
¥860
Tonkotsu with Nori (Soy Sauce)
Tonkotsu soy sauce ramen with extra nori seaweed sheets. The nori soaks into the rich broth, adding umami and texture to each bite.
¥860
Tonkotsu with Green Onion (Soy Sauce)
Tonkotsu soy sauce ramen loaded with a generous mound of sliced green onion, adding a fresh, sharp contrast to the rich, creamy broth.
¥890
Soy Sauce Special (Large)
Large portion soy sauce tonkotsu special with extra toppings including chashu, egg, and nori. Premium size for big appetites.
¥1230
Soy Sauce with Green Onion (Large)
Large-size soy sauce tonkotsu ramen topped with a generous helping of sliced green onion.
¥1180
Soy Sauce with Nori (Large)
Large-size soy sauce tonkotsu ramen with extra nori seaweed sheets.
¥1180
Soy Sauce with Egg (Large)
Large-size soy sauce tonkotsu ramen topped with a soy-marinated soft-boiled egg.
¥1190
Soy Sauce Chashu (Large)
Large-size soy sauce tonkotsu ramen with extra slices of braised chashu pork.
¥1190
Tonkotsu Salt Ramen
Tonkotsu Ramen (Salt)
The salt variant of the Iekei-style bowl — rich pork bone broth seasoned with salt (shio) for a cleaner, lighter flavor than the soy sauce version. Same thick noodles, chashu, spinach, and nori.
¥760
Salt Tonkotsu Special
Salt tonkotsu ramen loaded with extra toppings: chashu, soy-marinated soft-boiled egg, and nori sheets. The cleaner salt broth lets the richness of the pork bone come through clearly.
¥1230
Salt Tonkotsu with Green Onion
Salt tonkotsu ramen topped with a heaping mound of sliced green onion. The salt broth pairs especially well with the sharpness of the scallions.
¥1190
Salt Tonkotsu with Nori
Salt tonkotsu ramen with extra nori seaweed sheets. Light, savory, and satisfying.
¥1190
Salt Tonkotsu with Seasoned Egg
Salt tonkotsu ramen topped with a soy-marinated soft-boiled egg with a rich, jammy yolk.
¥1190
Specialty Ramen
Habanero Spicy Tonkotsu Ramen
The tonkotsu broth is amped up with habanero chili for a fiery, intense heat. Rich pork bone base with a serious kick — for spice lovers only.
¥870
Tonkotsu Miso Ramen
Tonkotsu broth blended with miso paste for a deeply savory, umami-rich soup. Heartier and earthier than the soy sauce or salt variants.
¥860
Spicy Tonkotsu Miso Ramen
The miso tonkotsu broth with added chili heat. Bold, complex, and warming — combines the earthiness of miso with a spicy finish.
¥860
Tantanmen (Sesame Spicy Ramen)
A Japanese-style tantanmen with a sesame and chili-laced broth. Creamy, nutty, and gently spicy, topped with ground pork and scallions.
¥800
Taiwan Ramen
Spicy ramen in the Nagoya-style Taiwan ramen tradition — a piquant, savory broth with minced pork, garlic chives, and chili. Bold and punchy.
¥800
Japanese-Style Chinese Noodles
A lighter, Japanese dashi-influenced Chinese noodle soup. Cleaner and more delicate than the tonkotsu bowls, with a refined soy-based broth.
¥760
Extra Chashu Ramen (Large)
Large-size tonkotsu ramen piled with extra braised chashu pork slices. For those who want an indulgent, meat-forward bowl.
¥1020
Tsukemen (Dipping Noodles)
Tsukemen Special
Tsukemen (dipping noodles) special set — thick noodles served alongside a concentrated tonkotsu dipping broth with extra toppings. Dip the noodles into the rich broth bite by bite.
¥1230
Tsukemen
Classic dipping noodles — firm, thick straight noodles served cold or warm alongside a bowl of hot, concentrated tonkotsu-based dipping soup. A satisfying alternative to regular ramen.
¥1080
Spicy Tsukemen
Spicy version of the dipping noodles — the concentrated tonkotsu dipping broth is spiked with chili for extra heat. Bold and intense.
¥1100
Sides and Drinks
Gyoza (Pan-Fried Dumplings)
Crispy-bottomed pan-fried pork dumplings. A classic side order to accompany ramen, with a thin wrapper and juicy filling.
¥230
Steamed Rice (Free)
Steamed white rice served free of charge with unlimited refills for all ramen orders, available all day. A hallmark of the Iekei ramen experience — traditionally eaten with leftover soup.
¥0
Highball (Whisky Soda)
Canned or bottled whisky highball (shochu or whisky mixed with soda). A light, refreshing alcoholic option to pair with ramen.
¥320
Draft Beer
Cold draft beer. Served ice cold — a classic pairing with a late-night bowl of rich tonkotsu ramen.
¥350