Isu Station katsu spot with a 5,000-won tonkatsu add-on: Kosi

There's almost no one who doesn't like tonkatsu (breaded pork cutlet). But finding the really good tonkatsu is what matters, I think. Kosi, a tonkatsu spot near Isu Station, is somewhere I personally always recommend. Let me write up why I put Kosi first whenever friends ask for tonkatsu recommendations near Isu Station!

Where is Kosi Isu Branch, and where do you park?

Kosi Isu Branch sits right in front of Exit 9 of Isu Station — the accessibility is excellent. For parking, they reportedly offer 1 hour free at the Isu Xi underground parking lot. Still, I'd recommend public transit if you can.

Kosi Isu Branch menu, interior and solo seats

Kosi Isu Branch is so famous for tonkatsu near Isu Station that you might run into a wait during peak times. There's a menu board out front, so picking your order ahead of time is a good move.

The restaurant has solo seats, 2-person tables, and 4-person tables, and for groups of more than four they'll push tables together so everyone can eat together.

A lot of people eat alone here, and since there are solo seats, you can drop in comfortably whenever you're craving tonkatsu.

You order via the tablet at each table. The menu descriptions are laid out well, so just pick whatever suits your taste.

We ordered basic tonkatsu, cheese tonkatsu, and cold bukkake udon. For reference, an extra tonkatsu ordered on its own is ₩6,000, but if you add it while ordering udon or tonkatsu, it's ₩5,000. A handy tip for anyone with a big appetite — add the tonkatsu on up front.

How do the basic and cheese tonkatsu taste?

To cut to the conclusion first: Kosi Isu Branch is a tonkatsu spot everyone can be happy with. I think anyone who's visited even once would agree with me.

This is the basic tonkatsu — the ultimate crispy-outside, juicy-inside cutlet. The meat is also really thick, so the juices properly burst out when you bite in.

The tonkatsu sauce, sweet with a slight tang, is really delicious too. You can enjoy the cutlet in various combinations — sauce, salt, wasabi, and more.

Sesame seeds are set out at every table — grinding them into the tonkatsu sauce makes it taste even better.

If you love tonkatsu that's crispy yet full of flavor, definitely visit Kosi, the tonkatsu spot near Isu Station. The portions are generous and the taste is great, so I think just about anyone would love it.

The cheese tonkatsu is also really tasty — it's packed with so much cheese that you can really taste the richness. If you love a savory melted cheese, I recommend it.

For reference, you can also order a half-and-half of tonkatsu and cheese tonkatsu. If there are two or more of you, it's more cost-effective to just order the basic and cheese tonkatsu separately. If you're dining alone, though, the half-and-half is a good way to enjoy both flavors.

House-made cold bukkake udon with tonkatsu

One of Kosi's signature dishes is the cold udon made with house-made noodles. Doesn't the presentation look great?

Just pour the cold udon broth over the noodles before eating. The noodles are really springy and chewy, so anyone who usually loves noodle dishes will be quite satisfied.

Whenever I visit Kosi, I always order tonkatsu and udon together. Eating them together is such a good combo, it tastes even better.

The springy, bouncy noodles go perfectly with the cold udon broth. Eating some cold udon in between bites of tonkatsu is the best.

When is Kosi Isu Branch least busy?

If you're looking for a good tonkatsu spot near Sadang or Isu Station, I recommend Kosi Isu Branch. It scores high on price, taste, and portion size all around.

On weekdays the wait is relatively light, so it's not much of a burden even at lunch or dinner. On weekends, though, it gets busy, so plan your visit time carefully.

Now you know why I recommend Kosi whenever friends ask me for a good tonkatsu spot near Isu Station. If you're looking for a truly delicious tonkatsu place, be sure to visit Kosi Isu Branch :)

There's a wide variety of tonkatsu and udon dishes, so you can pick whatever suits your taste. If you're visiting with several people, I think it's a good idea to order a variety of dishes and share.

This is just my personal opinion, so please take it as a light reference. That wraps up my review of Kosi, a tonkatsu spot in Sadang-Isu. Thank you :)