Seoul izakaya near Eungam Station: seafood ceviche and sushi, Kosei

In short

Kosei is a Japanese izakaya in an alley near Eungam Station in Eunpyeong-gu, Seoul. Kosei's seafood ceviche (27,000 won), built on autumn produce, and the monkfish liver flounder sushi, 6 pieces (21,000 won), went down well with draft beer, and the fig-and-seafood pairing plus the rich monkfish liver over flounder stood out. With bar seats for solo drinkers and a calm room for anniversaries or small groups, Kosei is one of the quieter bars in this part of Seoul.

Table spread of Japanese dishes at Kosei

Good to know

Address
14 Eungam-ro 21ga-gil, 1F Unit 101, Eunpyeong-gu, Seoul
Hours
Mon–Sat 17:00–01:00 the next day (last order 23:50)
Closed
Every Sunday
Ordering policy
One alcoholic drink or one beverage required per person
Good to know
Reservations accepted, groups welcome, no-kids zone
Parking
No private lot; Eungam 3-dong public parking lot is a 3–4 minute walk
Seafood ceviche
27,000 won
Monkfish liver flounder sushi
6 pieces, 21,000 won

as written by the visitor on Sep 22, 2026

Main image of Kosei, an izakaya near Eunam Station
Table spread of Japanese dishes at Kosei
Exterior of Kosei izakaya in an Eunam-dong alley

What kind of place is Kosei?

I heard there was an izakaya with great atmosphere in Eunam-dong, so I went to check out Kosei. Yay!!!

It's a spot where you can taste Japanese dishes made with fresh, seasonal ingredients — an izakaya near Eunam Station that offers something a bit different from the usual bar food.

Kosei hours, address and ordering rules

  • Address: 14 Eungam-ro 21ga-gil, 1F 101, Eunpyeong-gu, Seoul, South Korea
  • Hours: Monday–Saturday 17:00–01:00 the next day
  • Last order: 23:50
  • Closed: every Sunday
  • Ordering policy: one drink or beverage order required per person
  • Other: reservations available, group-friendly, no kids allowed

Parking at Kosei and how to get there

There's no dedicated parking lot for the restaurant. If you're driving, search for 'Eungam 3-dong public parking lot' — it's about a 3–4 minute walk from there to Kosei.

From Eunam Station, take Exit 4, walk along Bulgwang Stream, and cross the first bridge. Head into the alley by the GS25 convenience store, and you'll spot Kosei diagonally to the right of the Chamdarae Park intersection.

From Saejeol Station, it's about 587m from Exit 1 — a nice stroll along Bulgwang Stream. I actually walked from home. The weather's been so good lately!

A Japanese izakaya tucked in an Eungam-dong alley

Wood-finished exterior of Kosei

This Eunam Station bar had a calm, atmospheric feel right from its wood-finished exterior.

Interior of Kosei with wood-toned tables and red walls

Inside, wood-toned tables mix with red walls for a warm, cozy vibe. There's also bar seating facing the kitchen, which looked great for a quiet solo drink and meal.

It really did feel comfortable for solo drinking, and it also seemed like a good spot for a date night or a small gathering.

While I was eating, an elderly couple sat across from each other, enjoying food and drinks together affectionately — it looked so lovely and full of atmosphere. It made me want to still be out enjoying good food together like that when I'm older.

This is an Eunpyeong-gu bar that suits days when you'd rather have a calm conversation over a meal than sit in a loud, rowdy bar.

Kosei's table setting and menu lineup

Once seated, plates and utensils were neatly arranged on a wooden tray.

Plates and utensils neatly arranged on a wooden tray
Table setting at Kosei
Page of the Kosei menu
Menu page listing sashimi dishes
Menu page listing sushi dishes
Menu page listing grilled dishes
Menu page listing tempura dishes
Menu page listing noodle dishes
Menu page listing hot pot dishes
Sake menu page
Soju and beer menu page
Wine menu page
Last page of Kosei's drink menu

Looking at the menu, there was a wide range from sashimi to sushi, grilled dishes, tempura, noodles, and hot pot. The drink lineup was also varied, with sake, soju, beer, and wine, so it was easy to pick something to match the food.

We ordered the seafood ceviche and the monkfish liver flounder sushi, paired with a cold draft beer.

Seafood ceviche, 27,000 won

The seafood ceviche is a Japanese-style ceviche made with autumn seafood, vegetables, and fruit.

A plate of Kosei's seafood ceviche

Generously cut, fresh seafood came piled high with figs, crisp vegetables, and pear. Topped with a clear, jelly-like garnish and sauce, it looked as vibrant as it tasted.

Close-up of seafood ceviche topped with figs and pear

Each bite delivered the clean flavor of the seafood, the subtle sweetness of the fruit, and the crisp texture of the vegetables all at once. It was my first time having ceviche with figs, and surprisingly, they went really well with the seafood.

Seafood ceviche with generously sized ingredients

The ingredients were cut big and served generously, so it was fun to eat spoonful by spoonful. It's a refreshing, appetite-opening dish — a great choice for the first order of the night.

Monkfish liver flounder sushi, 6 pieces, 21,000 won

This dish tops flounder sushi with sweetly braised monkfish liver.

A plate of monkfish liver flounder sushi, 6 pieces

Glossy flounder was generously topped with monkfish liver, finished with a touch of wasabi.

The chewy, clean flavor of the flounder paired with the rich, savory taste of the monkfish liver made for a really special combination. The wasabi cut through the richness of the liver cleanly, so it never felt heavy — I kept reaching for more.

Flounder sushi topped with monkfish liver and wasabi

It's not the kind of sushi you'd normally come across, and it felt like a real showcase of Kosei's distinctive style.

Monkfish liver flounder sushi served with draft beer

It paired well with the draft beer too — really enjoyed it.

Is Kosei worth it? Final thoughts on this Eungam Station bar

Kosei is a place where you can enjoy distinctive Japanese dishes made with fresh seafood and seasonal ingredients.

The seafood ceviche had a refreshing combination of fruit and seafood, and the monkfish liver flounder sushi stood out for the harmony between the clean flounder and the rich liver.

With bar seating for solo drinkers and a calm mood between tables, it also suits a date night or a small gathering.

If you want to try something other than the usual bar snacks in Eunam-dong, give Kosei a visit. It's a quiet izakaya near Eunam Station, perfect for conversation over a drink.

Where it is

Kosei코세이

14 Eungam-ro 21ga-gil, 1F 101, Eunpyeong-gu, Seoul, South Korea서울특별시 은평구 응암로21가길 14 1층 101호

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