Gilpost · Seongdong-gu, Seongsu-dong 2-ga
BarJapanese
All eum
올음 Oreum Oleum is the owner's contraction of 올바른 음식, 'proper food', as several visitors were told.
Compiled from 25 blog posts read in fullSources →
Oleum is a sashimi omakase counter in an alley between Seongsu and Konkuk Univ. stations, half a flight down in the basement of a red-brick building. A single owner-chef works an open kitchen in front of the bar, sending out 10 to 12 plates — steamed egg, octopus in vinegar dressing, abalone steamed in rice wine, two rounds of aged sashimi, grilled fish, a shellfish plate, a seaweed hand roll, udon, pot rice and house-made sweets — for 70,000 won a head, a price that held across every post we read. Two diners must order at least one bottle of traditional Korean liquor, and it opens only for dinner (17:00 on weekdays, 15:00 at weekends, closed Mondays). We read 30 posts from 20 March to 1 August 2026; 4 were about other places, leaving 26 first-hand visits.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 동일로 75-18, 지1층 (성수동2가)75-18 Dongil-ro, Seongdong-gu, Seoul
- Phone0507-1438-3120
- Typical spend₩14,000 – ₩70,000
- From the station8 posts say it is walkable from the station.
- Floor areaFloor area 56 m² · Status In business
When it opens
Of 17 posts: 12 wrote Weekdays 17:00–22:00, 12 wrote Weekends 15:00–22:00, 2 wrote 17:00–22:00.
| Weekdays | 17:00–22:00 | |
|---|---|---|
| Weekends | 15:00–22:00 | |
| No day given | 17:00–22:00 | 2 of 17 posts |
| Closed | Monday | 15 of 15 posts |
Rows without a count: 12 of 17 posts.
2 other values
| Open | Weekdays | 17:00–23:00 3 of 17 posts last seen 2026-07 |
|---|---|---|
| Open | Weekends | 15:00–23:00 3 of 17 posts last seen 2026-07 |
The values differ, but the periods they were written in do not overlap. This looks like a change over time rather than a disagreement, and the top row is the most recently reported. We did not confirm it with the restaurant.
What sets it apart
- Drinking is part of the deal: 14 posts say two diners must order at least one bottle. Prices seen on the list were 34,000 won for Samyangchun cheongju, 36,000 won for Suam, 14,000 won for a Korean IPA, and 45,000 won per person for a four-glass pairing. Two posts ordered non-alcoholic beer, and many say the chef will pick a bottle — including ones not on the list — if you describe what you like.
- Fifteen posts describe the seating: mostly a counter facing the chef, with ten mentioning a separate table. One counts a U-shaped counter for up to 10 plus a four-top by the window that takes parties of two or more; others say about 8 counter seats and a single four-person table.
- Nine posts mention the open kitchen: from the counter you watch the chef break down fish, slice the octopus in front of you, and cook the soups, steamed and grilled dishes.
- Ten posts call it good value for the money — one asks whether 70,000 won for that spread can be real. None call it expensive.
4 more
- Fourteen posts call it quiet — tucked into a residential lane away from Seongsu's busy streets, calmest on weekday evenings — though one found it nearly full of reservations even on a weekday night.
- Seventeen posts booked ahead, through CatchTable or Naver. Two note that seatings are staggered every 30 minutes, so each party starts at its own time.
- One post says the meal slowed down: with the chef alone doing everything and new parties arriving every 30 minutes, gaps opened between plates — in at 17:50, out at 20:30. Another post found the same staggered system relaxed and unhurried.
- Company varies: three posts went as a couple, two with friends, one with a mother, one with two former bosses, and one diner sat alone at the counter and found it not awkward at all.
What 25 bloggers said
sashimi omakase
Quiet
We read all 25 in full. The most common claims are “Quiet” (14) and “Not expensive” (10).
What they liked
What they struggled with
Where they disagree
| In a basement | yes 8 · no 2 |
|---|
Things you can check on site
- Takes reservations 17 of 25 posts
- Seats to sit and eat 15 of 25 posts
- One bottle per table required 14 of 25 posts
- Toilet inside 10 of 25 posts
- Has tables 10 of 25 posts
- Open kitchen 9 of 25 posts
- Reachable by transit 8 of 25 posts
- Wine served 3 of 25 posts
- Large windows 2 of 25 posts
- Beer served 2 of 25 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Parking
4 posts say you cannot park. None say you can.
| Posts saying you cannot | 4 of 25 posts |
|---|
Four posts say there is no parking; visitors are pointed to the paid Myeongseong lot across the road. Its rate (1,500 won per 30 minutes) appears in one post as copied information.
Who came, and with whom
- Date 3 of 25 posts
- With a friend 2 of 25 posts
- Family visit 1 of 25 posts
- Group visit 1 of 25 posts
- Solo visit 1 of 25 posts
Where it is
We could not find this shop’s own listing on Naver Map, so the link searches for its Korean name around this spot instead.
From the station
8 posts say it is walkable from the station.
Getting inside
| In a basement | yes 8 · no 2 (of 25 posts read) |
|---|---|
| Toilet inside | 10 of 25 posts |
Eight posts describe going down to a basement and two call it ground floor. Those who went down describe it as "about half a flight", a semi-basement, "basement but feels like ground level" — so it sits half a storey below the street rather than deep underground. Two posts note a large window that lets light in. The building's first and second floors are a different restaurant.
No one mentions an entrance step, wheelchair or stroller access, or a lift — that means we don't know, not that there is none. Two posts mention stairs down at the entrance.
Ten posts say the toilet is inside the restaurant, so there is no trip to a shared building toilet; some list mouthwash, eye drops, hair ties, contact-lens solution, cotton swabs and even an eyelash curler laid out.
No one says whether the toilets are separated by gender.
No one mentioned: Second floor · Lift to the floor · Ramp at the door · Step at the entrance · Step-free access · Accessible toilet · Separate restrooms. That is not the same as there being none — it means we could not confirm it. Worth calling ahead, and do tell us: we will put it here.
How to read these posts
- Posts disclosing payment2 of 25 posts
- Posts saying they paid themselves6 of 25 posts
- Posts saying nothing either way17 of 25 posts
When the posts appeared
Month by month
| Month | Posts |
|---|---|
| 2026-03 | 2 |
| 2026-04 | 6 |
| 2026-05 | 8 |
| 2026-06 | 4 |
| 2026-07 | 3 |
| 2026-08 | 2 |
What we do not know
- Eight posts say it is walkable from the subway, and one says it is a bit of a trek. Walking times disagree: two posts give 5 minutes from Seongsu exit 3 and 7 from Konkuk Univ. exit 6, while six say 10 to 15 minutes. One walked 3 to 4 minutes from a bus stop.
- No one describes queueing. Every visitor had a reservation; one mentions people waiting outside, but they were waiting for their seating time. Whether walk-ins are accepted, nobody says.
- Opening hours disagree on closing time: of 17 posts that list hours, 14 say 22:00 and 3 say 23:00 (March, May and July), so it isn't a dated change and we can't tell which is current. Opening times (17:00 weekdays, 15:00 weekends) agree everywhere, and 15 posts give Monday as the day off. One says to check notices for Thursdays.
- The course price stayed at 70,000 won from a February 2026 visit to August, but the bill depends on drink: with a bottle required per two people, a couple pays 140,000 won plus a bottle (34,000–36,000 won on the bottles we saw). One post guessed their course with pairing came to 115,000 won a head.
- Of the 26 visits, two disclose sponsorship and six say they paid. The other 18 say nothing, and several share near-identical sentences — two posts match line for line on the potted flowers, the truffle custard, the soy-pickled barley and the sashimi description — suggesting briefed, commissioned copy. Weigh their praise accordingly.
- Six posts give the phone number 0507-1438-3120, and most booked via CatchTable or Naver. The course follows the day's catch, so the fish named in any post may not be what you get.
Sources (25)
Every number above was counted from the posts below.
- 성수오마카세 올음 제철해산물을 맛볼 수 있는 분위기 좋은 전통주 .... 2026-08-01 · 아비카유
- 성수 오마카세 데이트 맛집 올음 제철해산물 코스와 전통주 페어링 2026-08-01 · 5gam이 새콤달콤한 시간_☆ by.스위티즘
- 성수 오마카세 올음｜제철 해산물과 전통주 페어링이 특별했던 기.... 2026-07-31 · 아르떼아모 Arteamo
- 성수 오마카세 혼밥 올음 전통주 페어링 숙성회 사시미 2026-07-29 · 아카이브
- 올음 건대 스시 가성비 최고 오마카세 내돈내산 먹방후기 2026-07-04 · 찬쥬의 블로그(USCPA, Finance)
- 서울 성수 오마카세 맛집 숙성 사시미 좋은 전통주 맡김차림 올음 2026-06-24 · Yestar's Colorful Journey · via Daum
- [성수·건대 맛집] 사시미와 전통주를 함께 즐기는 성수 오마카세 맛집 ‘올음’ 2026-06-24 · 욱박이의 Food Travel · via Daum
- 성수 오마카세 맛집 건대 오마카세 올음 오마카세 2인 깔끔하고 맛있는 맡김차림 디너코스와 전통주... 2026-06-15 · Yebin on the World · via Daum
- 성수 올음 후기｜퇴근 후 사시미 오마카세,내돈내산, 성수 전통주 .... 2026-06-05 · 용나의 기록
- 성수맛집) 성수 사시미 오마카세 맛집 | 올음 성수 내돈내산 후기 2026-05-29 · 꿀벌지니
- 올음 성수 사시미 올음 정갈한 한식 맡김차림과 전통주 페어링 후기 2026-05-24 · 심심풀이 블로그
- 성수 오마카세 맛집 올음, 사시미와 전통주의 조화가 좋은 곳 2026-05-24 · rabochang님의 블로그
- 성수 오마카세 맛집ㅣ‘올음’ 다찌 분위기 좋은 디너 코스 식당 2026-05-08 · Deep In Vogue
- 성수 오마카세 맛집 올음 전통주와 즐기는 제철 사시미 코스 2026-05-07 · 블로그 어떻게 하는 건가요?
- 성수 오마카세 맛집 '올음' 후기 2026-05-06 · early-bird
- 성수 오마카세 맛집 올음 콜키지 가능한 7만원 가성비 오마카세 전.... 2026-05-06 · 은은로그
- 성수 올음 건대맛집 성수오마카세 사시미오마카세 방문 후기 및 추.... 2026-05-01 · 뽄토리's pick
- 성수 오마카세 맛집 올음 | 전통주와 함께 즐기는 맡김차림 코스 2026-04-29 · 오늘을 담다
- 건대입구 성수역 사이 전통주 잘하는 오마카세 올음 디너 후기 2026-04-26 · 자유와 지유는 점 하나 차이
- 어느새 봄이...더 보기 2026-04-23 · 인생은 아람다워
- 봄, 그리고 다음 2026-04-19 · 마음이 식지 않게, 적어두는 곳
- 성수 오마카세 맛집 올음, 조용하게 제대로 먹고 싶다면 여기 2026-04-10 · Seom 의 눈썰미
- 성수 오마카세 맛집 올음, 분위기·맛 다 잡은 성수 사시미 맡김차림 2026-04-03 · choco2167님의 블로그
- [성수 오마카세 올음] 내돈내산 아니고 과장님 돈으로 오마카세 누.... 2026-03-25 · 흐르는대로 살아가는 사람
- [성수 맛집] 올음 오마카세_ 내돈내산_ 전통주와 오마카세의 조화_ .... 2026-03-20 · 미지의 세계_가자 결혼의 세계로
Of 280 candidate posts we opened 50 and kept 25 as evidence. We stop once 30 are confirmed: beyond that the counts grow in proportion without changing the answer.