# Gwangjin katsu restaurant with hot udon sets: Kosi

- By Doyun (https://superchart.com/en/@second-menu/)
- Written Sep 12, 2026
- Local places › Restaurants › Gwangjin, Seoul
- Sponsored: This content was created with support for a visit to the restaurant.
- English edition: https://superchart.com/en/@second-menu/konshi-konkuk-tonkatsu-set/
- Also in: [한국어](https://superchart.com/ko/@second-menu/konshi-konkuk-tonkatsu-set/index.md)

## In short

Kosi Konkuk University Branch is a Japanese restaurant in Gwangjin, Seoul, serving tonkatsu and udon near Konkuk University Station. After our first wedding-anniversary date, we ordered the 14.5 ten bukkake udon set and 18.0 assorted katsu set, and loved the chewy noodles, pork cutlet, and cheese cutlet. Verdict: a satisfying choice when you want a generous set meal.

## Good to know

- **Address**: 197 Achasan-ro, 1st floor, Gwangjin-gu, Seoul, South Korea (서울 광진구 아차산로 197 1층)
- **Hours**: 11:10–21:00
- **Break time**: 15:00–17:00
- **Last order**: 20:30
- **Parking**: Two spaces in front of the building
- **Seating**: Four-person tables, two-person tables, and bar seating
- **Conveniences**: Takeout, delivery, Wi-Fi, and high chairs
- **Bukkake udon**: Single ₩9,000 / set ₩13,000
- **Ten bukkake udon**: Single ₩10,500 / set ₩14,500
- **Tonkatsu**: Single ₩11,500 / set ₩15,000
- **Assorted katsu**: Single ₩14,500 / set ₩18,000
- **Kake udon**: Single ₩9,000 / set ₩13,000
- **Tori-ten udon**: Single ₩10,500 / set ₩14,500
- **Katsune udon**: Single ₩10,500 / set ₩14,500
- **Rice bowls**: Gyudon, ebidon, and karaage-don: ₩10,000 each

*as written by the visitor on Sep 12, 2026*

After my husband and I had our first wedding-anniversary date, we were about to head home for dinner—but since we were in Seongsu for the first time in ages, we went to Kosi Konkuk University Branch! A teacher I worked with brought me here the first time because she said it was good, and I got hooked then; I’ve probably been back around 10 times, a true regular spot. The tonkatsu is always on point and the cold udon is delicious too, so I’d come here with my husband a few times as well~

There can be a bit of a wait at weekday lunchtime, but I visited after our weekend date, so thankfully we walked straight in with no wait 👍🏻

## Inside Kosi Konkuk University Branch and the seating

![Seating area inside Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-01-1u4s2-1200.webp)

![Table seating inside Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-02-hc39c-966.webp)

![Dining area inside Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-03-1jkxr-966.webp)

There are lots of tables, and the restaurant is quite spacious! Most are four-person tables, with a few two-person tables and bar seats in between, so it’s also great for eating alone. I came by myself for lunch plenty of times after weekend shifts too 👤

![Table kiosk at Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-04-lq058-966.webp)

Each table has a kiosk, so you can order comfortably from your seat. I also loved that you can pay right there too—no need to make a separate trip to the counter!

## Tonkatsu and udon menu

![Udon menu at Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-05-844df-654.webp)

![Tonkatsu menu at Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-06-8w8ok-657.webp)

![Hot udon menu at Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-07-l246f-661.webp)

![Donburi menu at Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-08-1i43p-659.webp)

- Cold udon: bukkake udon, single ₩9,000 / set ₩13,000; ten bukkake udon, single ₩10,500 / set ₩14,500
- Tonkatsu: tonkatsu, single ₩11,500 / set ₩15,000; assorted katsu, single ₩14,500 / set ₩18,000
- Hot udon: kake udon, single ₩9,000 / set ₩13,000; tori-ten udon and katsune udon, single ₩10,500 / set ₩14,500
- Donburi (rice bowls): gyudon, ebidon, and karaage-don, ₩10,000 each

Udon sets come with tempura, while katsu sets come with kake udon! My husband chose the ten bukkake udon set, topped with shrimp and kabocha squash tempura, while I wanted hot udon too, so I finished ordering the assorted katsu set 🪄 Plus a Fanta~

## Ten bukkake udon set and assorted katsu set

![Full set-meal spread at Kosi Konkuk University Branch](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-09-1qafg-966.webp)

What a generous spread! Since we both ordered sets, there was so much food 🌟

![Ten bukkake udon and assorted katsu sets](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-10-qoi3v-966.webp)

### My husband’s ten bukkake udon set

![Components of the ten bukkake udon set](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-11-ccj3u-966.webp)

![Ten bukkake udon and tempura](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-12-1vkzx-966.webp)

The added tempura with the set included sweet potato, shrimp, kabocha squash, and perilla leaf, plus one piece of yubu chobap (fried tofu sushi) 🍤 Since it’s bukkake udon, you pour on the separately served broth to your liking. The udon noodles were seriously so chewy, with a great bite 🤤

![Sweet potato tempura and sauce](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-13-1hjby-966.webp)

I love sweet potato tempura, so I dipped it right into the sauce for a bite! So crispy and tasty, yum yum.

![A bite of crispy sweet potato tempura](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-14-1d2wt-966.webp)

### Assorted katsu set with hot udon

![Assorted katsu set with hot udon](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-15-r08c5-966.webp)

![Cheese katsu and tonkatsu set](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-16-1doa5-966.webp)

I wanted both cheese katsu and tonkatsu, so I ordered the assorted katsu—and yep, I’m so glad I did 🤤 Maybe because the weather was starting to cool down, I was craving hot udon too, and its noodles were wonderfully chewy as well!

![Cheese katsu in the assorted katsu set](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-17-12vzi-966.webp)

Tonkatsu and cheese katsu you can always count on! I ate the tonkatsu first and had the cheese katsu afterward, so this was taken a while after it came out, but the cheese was still stretching like crazy. So fascinating~

![Cross-section of stretchy cheese katsu](https://img.superchart.com/images/konshi-konkuk-tonkatsu-set/konshi-konkuk-tonkatsu-set-18-wxyra-966.webp)

There are even vitamins by the counter as you leave after eating, perfect for a little palate refresher on the way out 😊

## A beloved regular spot that was lovely to revisit

Kosi was just as delicious as I remembered, even after a long time! I used to come here often when I was at my old job, so it felt even nicer to return on my wedding anniversary, haha. From the tonkatsu and cheese katsu to the udon, everything was delicious without a weak link, and the staff were all so kind that it made for such a feel-good meal~ If you’re looking for great tonkatsu or udon around Seongsu or Konkuk University Station, everyone, go Kosi 😃

## Where it is

- Kosi Konkuk University Branch (코시 건대점)
- 197 Achasan-ro, 1st floor, Gwangjin-gu, Seoul, South Korea (서울 광진구 아차산로 197 1층)
- 서울특별시 광진구 아차산로 197 1층
- 37.5419061, 127.0654995
- Google Maps: https://www.google.com/maps/search/%EC%BD%94%EC%8B%9C%20%EA%B1%B4%EB%8C%80%EC%A0%90/@37.5419061,127.0654995,17z

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