Gilpost · Seongdong-gu, Seongsu-dong 1-ga
Japanese
Sushi Ijji Seongsu
스시이찌 성수점 Sushi Ichi — ichi is Japanese for 'one'; the posts give no story behind the name.
Compiled from 21 blog posts read in fullSources →
A sushi omakase counter on the ground floor of the Metamorpho building at 89 Seongsu-il-ro, near exit 4 of Ttukseom station. Two chefs split one counter; it is reservation-only with fixed start times. In 2026 posts the weekday lunch is 29,000 won (40 minutes), weekend lunch 39,000 (70 minutes) and dinner 39,000 (90 minutes, one drink per person required), with tempura and extra pieces ordered separately. Several posts say a birthday mentioned at booking gets a candle on the futomaki. Two 2025 posts list lunch at 28,000 and dinner at 38,000. We read 30 posts from September 2025 to October 2026; 9 were about other branches and set aside, and all 21 remaining describe a visit. None disclosed sponsorship.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 성수일로 89, Metamorpho(지식산업센터) 1층 101호 (성수동1가)89 Seongsuil-ro, Seongdong-gu, Seoul
- Phone0507-1404-5647
- Typical spend₩9,000 – ₩39,000
- From the station4 posts say it is walkable from the station.
- Floor areaFloor area 70 m² · Status In business
When it opens
Of 14 posts: 10 wrote Daily 11:00–21:00, 3 wrote 11:00–21:00.
| Daily | 11:00–21:00 | 10 of 14 posts |
|---|---|---|
| No day given | 11:00–21:00 | 3 of 14 posts |
| Break | 14:30–16:30 | 13 of 13 posts |
| Closed | None | 2 of 2 posts |
Counted from what bloggers wrote in their posts; we did not confirm it with the restaurant. Where the values differ, it may be a change over time rather than a disagreement, so we show when each one was written.
What sets it apart
- You cannot walk in. 14 posts say they booked through Naver or CatchTable. Names are called at the exact start time, and several posts copy the rule that arriving more than 30 minutes late counts as a no-show. One guest whose train ran late arrived at 13:20 to find several dishes already served.
- If you arrive early there is somewhere to sit. 7 posts describe waiting on chairs just inside the door until the start time; a December post mentions a heater beside the seats.
- 4 posts say all seating is at the counter. They count the seats differently: one says 10, one says 11 at most, and one notes a stated capacity of 13 but thought 10 was the realistic maximum.
- 6 posts mention lockers behind the seats; one visitor from out of town stowed luggage there.
7 more
- 6 posts say dinner requires one drink per person; highballs come alcohol-free too. One post suggests budgeting 50,000 won, and another paid 55,000 won a head with tempura and drinks.
- Of 19 posts that discussed price, 17 found it good value. One wrote that 29,000 won for ten pieces is not exactly cheap, while still calling it worth a visit.
- 4 posts call the tempura crisp. Several say it is only ordered early in the course — one says within 15 minutes of starting — and one post's tempura was forgotten and arrived near the end.
- Each piece comes already brushed with soy, with no dish of soy on the counter. 4 posts say the seasoning was not too salty; one found it a little bland and asked for soy.
- 4 posts walked from Ttukseom station — about 400 m or five minutes from exit 4, easy even in rain, one says.
- 6 posts found the staff friendly — adjusting rice and seasoning, laughing off a broken pair of tongs. Two posts wanted more explanation: one chef kept talking sake instead of describing the pieces, and another only named the fish.
- 1 post asked to bring a birthday cake, was told no, and requested the futomaki 'cake' instead. Several posts copy a paid-corkage notice; one gives 10,000 won per bottle.
What 21 bloggers said
dineo omakase
Not expensive
We read all 21 in full. The most common claims are “Not expensive” (17) and “Friendly staff” (6).
What they liked
Things you can check on site
- Takes reservations 14 of 21 posts
- Waiting area 7 of 21 posts
- One drink per person required 6 of 21 posts
- Bag storage 6 of 21 posts
- In a basement saying it is not 5 of 21 posts
- Beer served 5 of 21 posts
- Counter seating only 4 of 21 posts
- Reachable by transit 4 of 21 posts
- Open kitchen 2 of 21 posts
- Review event 2 of 21 posts
- High ceiling 1 of 21 posts
- Discount offered 1 of 21 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Parking
3 posts say you can park. None say you cannot.
| Posts saying you can park | 3 of 21 posts |
|---|
3 posts describe parking in the building garage with a ticket bought at the restaurant (one notes no valet). The first hour is 2,000 won by most accounts, but posts disagree on extra time: 4,000 won per added hour versus 2,000 won per hour capped at 4,000.
Who came, and with whom
- With a friend 5 of 21 posts
- Date 3 of 21 posts
- Family visit 2 of 21 posts
- Group visit 1 of 21 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
4 posts walked from Ttukseom station — about 400 m or five minutes from exit 4, easy even in rain, one says.
Getting inside
| In a basement | yes 0 · no 5 (of 21 posts read) |
|---|
It is at street level, not in a basement: 5 posts describe it on the building's ground floor, one likening the entrance to an officetel lobby.
No one mentions a step at the entrance or wheelchair or stroller access; we only know it is on the ground floor. That means unknown, not absent.
No one describes the toilet from experience; one post's info box says the building's toilet can be used, which we did not count.
No one mentioned: Second floor · Lift to the floor · Ramp at the door · Step at the entrance · Step-free access · Toilet inside · 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 saying they paid themselves9 of 21 posts
- Posts saying nothing either way12 of 21 posts
When the posts appeared
Month by month
| Month | Posts |
|---|---|
| 2025-09 | 1 |
| 2025-12 | 1 |
| 2026-06 | 1 |
| 2026-08 | 4 |
| 2026-09 | 13 |
| 2026-10 | 1 |
What we do not know
- No sign of a move, but prices rose: posts from September and December 2025 give 28,000 / 38,000 won, 2026 posts 29,000 / 39,000. We can only date the change to between December 2025 and August 2026.
- One August 2026 post lists 29,900 / 39,900 won; every other 2026 post says 29,000 / 39,000.
- Whether there is a weekend dinner is disputed: two posts copying the menu say yes at 39,000 won; one says weekends are lunch only.
- All opening hours are copied from listings: 13 posts give daily 11:00–21:00 with a 14:30–16:30 break, one says it opens at 11:30. No one reports checking the hours in person.
- Several posts list 0507-1404-5647, but one says the brand does not take phone calls and changes or questions go through Naver TalkTalk only.
- No one queued — with reservations, the wait is a few minutes before the start time. One post found lunch fully booked both visits and suggests CatchTable's waitlist to catch cancellations.
- The no-kids policy (children who can eat the adult course are allowed) is a notice copied by several posts; nobody went with a child.
Sources (21)
Every number above was counted from the posts below.
- [성수데이트] 특별한 날 함께 가기 좋은 성수 스시 오마카세 맛집/스.... 2026-10-03 · 오늘의 재미있는 제철 데이트
- 스시이찌 성수ㅣ가성비와 퀄리티를 모두 잡은 서울 오마카세 내돈.... 2026-09-28 · 율무의 이모저모
- 2026년 8월의 조각들 2026-09-24 · 오늘도, 채니의 조각들
- [서울/성수] 성수 평일 런치 가성비 오마카세 스시이찌 성수점 2번.... 2026-09-19 · Piece Of Love
- 서울 성수 가성비 오마카세 완전 강추 스시이찌 성수점 2026-09-15 · 완자블로그
- 밀려서 거의 지구한바퀴 돌아 컴백한 블로그 2026-09-12 · 얼룩말의 일기장
- [성수] 스시이찌 성수점 가성비오마카세 후기 2026-09-09 · buubuu의 블로그
- [서울] 성수 가성비 오마카세 스시이찌 평일 디너...생일 기념 | 아쉬웠던점 | 솔직 후기 | 성수 기념일 2026-09-09 · ˚•₊˚⊹♡ · via Daum
- (내돈내산) 서울 성수 맛집, 스시이찌 성수점 | 가성비 퀄리티 모두 .... 2026-09-07 · 아주다운, 일상 로그 ୨୧
- 성수동 가성비 오마카세 런치, 스시이찌 성수점 2026-09-07 · ye2sis
- 🍣 초밥 오마카세 스시이찌 성수점 #내돈내산 후기 2026-09-04 · 과로사하는 그 날까지 · via Daum
- 성수 데이트 추천 | 성수 스시이찌 오마카세, 주말 런치 39,000원🍣 2026-09-04 · 현지가 직접 가보고 기록하는 현지인 탐방기 · via Daum
- [맛] 성수 스시이찌 2026-09-03 · 12월 32일
- 성수동 스시 맛집 스시이찌｜3만원대 가성비 좋은 오마카세 런치 후.... 2026-09-02 · 오늘 뭐 먹고, 어디가지?
- 성수동 가성비 런치 오마카세 스시이찌 성수점, 이 가격에 배가 부.... 2026-08-31 · 빼어날병수
- 내돈내산 성수 오마카세 스시 런치, 2만 원대 가성비 오마카세 '스시.... 2026-08-27 · ❤️KONG SOM ME❤️
- 성수맛집 성수오마카세 가성비 좋은 오마카세 스시집 스시이찌 성.... 2026-08-24 · 일상속의 작은행복
- 성수 스시이찌 서울 가성비 오마카세 주말 런치 후기 2026-08-12 · 솔직리뷰 블로그
- 내돈내산 스시이찌 성수점 런치 뽀개기 2026-06-19 · 콩의 콩까기 · via Daum
- [서울/뚝섬역] 성수동 스시 오마카세 가성비 맛집_스시이찌 성수점 (.... 2025-12-13 · 내돈내산 일상 기록
- 성수 오마카세 맛집 스시이찌 성수점, 가성비 오마카세 내돈내산 2025-09-16 · baezzi’s daily log
Of 412 candidate posts we opened 117 and kept 21 as evidence. We stop once 30 are confirmed: beyond that the counts grow in proportion without changing the answer.