Half-and-half katsu set with a solo beer at Kosi Gyodae, a Seocho Japanese restaurant

In short

Kosi Gyodae Branch is a Japanese restaurant near Gyodae Station in Seocho, Seoul, serving hand-pulled udon and handmade tonkatsu. The half-and-half katsu set (pork katsu and cheese katsu) came with warm kake udon, and a bottle of Kirin beer made it an easy solo meal in a relaxed room; menu prices start at ₩9,000. For an affordable tonkatsu lunch near Gyodae Station, Kosi Gyodae Branch is an easy recommendation.

Half-and-half katsu set at Kosi Gyodae Branch

Good to know

Menu
Hot udon, cold udon, tonkatsu, donburi, set meals
Menu prices
From ₩9,000
Sanuki bukkake udon
₩9,000
Parking in front
1 car free on weekdays, 2 on weekends
Hanseong Parking Lot
30 minutes free per table with a ₩20,000+ meal, 3-minute walk
Ordering
Table-order tablet for ordering and payment
Seating
Sofa tables, solo-dining zone

as written by the visitor on Sep 9, 2026

Half-and-half katsu set at Kosi Gyodae Branch

I went for lunch at Kosi Gyodae Branch (코시 교대점), a Gyodae Station favorite known for hand-pulled udon and handmade tonkatsu (pork cutlet). It was so good I scraped my plate clean..!! I'm around Gyodae Station fairly often, and with a menu this varied and prices this reasonable, I honestly want to work my way through the whole thing : )

Parking and menu prices

Visitor information at Kosi Gyodae Branch
Exterior of Kosi Gyodae Branch

For parking, there's free space in front of the restaurant for 1 car on weekdays and 2 on weekends. On top of that, if you spend ₩20,000 or more, they cover 30 minutes per table at Hanseong Parking Lot (한성주차장), a 3-minute walk away. Good to know if you're driving to the Gyodae Station area!

Parking information at Kosi Gyodae Branch
Parking notice at Kosi Gyodae Branch

The menu is made up of hot udon, cold udon, tonkatsu, donburi (rice bowls) plus set meals, and best of all, prices start at ₩9,000, so lunch near Gyodae Station doesn't hurt the wallet! Their signature Sanuki bukkake udon (thick udon with concentrated sauce) is ₩9,000 too : )

Menu board at Kosi Gyodae Branch

A warm interior that's easy for solo dining

Inside, it's furnished with wooden sofa tables. Add the soft lighting and the whole place feels warm and relaxed :)

Interior with wooden sofa tables

The window side is pretty too, and the tables are roomy, so eating was comfortable. There's a separate solo-dining zone as well, so coming alone is no big deal! I sat in the solo zone at first, but a staff member moved me to a sofa table, which made the meal even more comfortable : )

Solo-dining zone at Kosi Gyodae Branch
Sofa table at Kosi Gyodae Branch

Half-and-half katsu set and a bottle of Kirin

Ordering and paying is easy through the table-order tablet. I'm not usually someone who seeks out tonkatsu, but I'd heard so much about how good Kosi's is that I ordered the half-and-half katsu as a set meal. If you upgrade a tonkatsu dish to a set, it comes with kake udon (udon in hot broth). And tonkatsu really calls for beer, doesn't it..♥ So I ordered a cold bottle of Kirin too : )

Table-order tablet and half-and-half katsu order

On the table there's tonkatsu sauce, salad dressing, sesame seeds and shichimi (Japanese seven-spice). The self-serve corner is thoroughly stocked with everything you'd need, from sauces and seasonings to side plates, aprons, wet wipes, danmuji (pickled radish) and kkakdugi (cubed radish kimchi) : )

Self-serve corner with sauces and side dishes

After a short wait, the Kirin came out first. Tonkatsu and beer, again..♥

A bottle of Kirin beer

It was my first time drinking a beer alone at a restaurant, but the atmosphere was so relaxed that I had a glass without feeling awkward at all : )

Bottled beer enjoyed solo

While I was happily sipping away, the half-and-half katsu set finally arrived!

Full spread of the half-and-half katsu set

It's pork katsu plus cheese katsu. Chilled (never frozen) pork is fried in milk and moist breadcrumbs, so the coating is crispy and the inside is really moist and tender : )

Pork katsu and cheese katsu

It had been a while since I'd had cheese katsu — juicy meat with stretchy, nutty cheese, and with a beer alongside it was pure bliss.. haha

Cheese katsu with bottled beer
Cross-section of the cheese katsu
Pork katsu from the half-and-half katsu set

The katsu itself is seasoned just right, so it's tasty even plain. You can dress it up however you like with salt, tonkatsu sauce, wasabi and so on,

Tonkatsu sauce and ground sesame

but personally, tonkatsu sauce plus ground sesame was my favorite combination!

Kake udon from the set meal

The warm kake udon that came with the set

The kake udon that came with the set. It's a warm udon with a broth of kelp, anchovies, saba-bushi (dried mackerel flakes) and more, simmered the traditional Sanuki way and seasoned with their house soy sauce.

Warm kake udon broth
Half-and-half katsu set and a solo beer near Gyodae Station, Kosi Gyodae Branch

Among hand-pulled udon I usually go for zaru udon (cold udon with dipping sauce) or cold udon, so I had no idea warm udon could be this good..!!

Kake udon with tempura crumbs

The broth is really clean and light, and there's plenty of tempura crumbs in it for a toasty flavor. Best of all, the noodles are wonderfully chewy, and they go great with the tonkatsu : )

Before the katsu, I drenched the salad in dressing and dug in, yum~ Midway I wanted more kkakdugi, so I went to the self-serve bar and grabbed another plate. And I polished off every last piece of katsu, not a crumb left haha

The table after finishing the meal

A filling lunch near Gyodae Station

All in all, Kosi Gyodae Branch left me satisfied — the food is good and the prices don't sting. You get hand-pulled udon and handmade tonkatsu in one place, and ordering the set adds udon on the side, so it's great for a hearty lunch. Kosi's tonkatsu and udon tasted even better with a cold beer. If you're looking for a good-value lunch spot or a tonkatsu place near Gyodae Station in Seocho, I recommend Kosi Gyodae Branch ♥

Where it is

Kosi Gyodae Branch코시 교대점

1F, 32 Seocho-daero 48-gil, Seocho-gu, Seoul, South Korea (서울특별시 서초구 서초대로48길 32 1층)서울특별시 서초구 서초대로48길 32 1층

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