Food · September 24, 2026

Isono Kazuo Sapporo | Late-Night Ramen and Sapporo Black

Guide to Isono Kazuo in Susukino, Sapporo: the signature Sapporo Black ramen, listed late-night hours, location and tips for visiting.

Isono Kazuo (いそのかづお) is a ramen shop in Sapporo’s Susukino nightlife district. Unlike most ramen restaurants that open for lunch, this shop is known for operating late at night into the early morning.

Its signature bowl is called Sapporo Black (札幌ブラック), offering a different ramen experience from the miso-based dishes often associated with the city.

Quick facts

Item	Details recorded in September 2026
Restaurant	Isono Kazuo
Address	Dai-ni Asahi Kanko Building 1F, Minami 5-jo Nishi 5-chome 21, Chuo Ward, Sapporo
Area	Susukino
Listed opening days	Monday–Saturday
Listed opening hours	10:00 p.m.–6:00 a.m. the following morning
Closing condition	Service may end early when soup sells out
Listed regular closing day	Sunday, subject to change
Signature ramen	Sapporo Black

These are historical details from the Japanese source, verified September 24, 2026. Nighttime schedules and days off can change; confirm the current details before setting out.

What is Sapporo Black?

The Japanese article identifies Sapporo Black as the restaurant’s representative dish. It is a useful option for visitors who want to explore Sapporo’s ramen scene beyond its famous miso ramen.

Exact ingredients, flavour profile, toppings and prices should be checked on the current menu. The dish’s name alone does not establish its full recipe.

Where is Isono Kazuo?

The shop is in the Dai-ni Asahi Kanko Building, first floor, at Minami 5-jo Nishi 5-chome 21, Chuo Ward.

The surrounding Susukino district is one of Sapporo’s major evening dining areas. Use a map to find the correct building entrance, especially after dark.

Planning a late-night visit

The source lists service from 10:00 p.m. until 6:00 a.m., but also notes that the shop can close when the soup runs out.

This means that even a visit within the published hours is not guaranteed to succeed. If you are making a special trip, check recent shop information and allow flexibility.

How to get there

The Japanese guide identifies Susukino as the nearest station area. The shop can be included in an evening itinerary around central Sapporo, but check your return transport options if you plan to eat after the subway has stopped running.

For transport planning, see our Sapporo Subway guide and Sapporo Streetcar guide.

Tips for first-time visitors

Check the latest schedule rather than assuming that old late-night hours still apply.
Be prepared for early sell-outs, which may shorten service.
Confirm the entrance to the building before arriving.
Check your route home if visiting after midnight.
Review the current menu and payment options on arrival.

Explore other ramen in Sapporo

Isono Kazuo adds variety to a ramen-focused trip. For different neighbourhoods and opening patterns, see:

Before you go

Reference listing: Isono Kazuo.

Check current hours, temporary closures and soup availability. This guide does not provide live opening status.

Sources

Restaurant listing referenced by the Japanese guide

Article ID: SP-0113