Gilpost · Seongdong-gu, Seongsu-dong 2-ga
Cafe
HAHAHA SEONGSU
하하하성수 Hahaha Seongsu Hahaha is simply the Korean written laugh, 'ha-ha-ha', and Seongsu is the neighborhood the cafe sits in.
Compiled from 15 blog posts read in fullSources →
Hahaha Seongsu is a large cafe on the ground floor of a red-brick building at 389 Ttukseom-ro, near Ttukdo Market; three posts say it is about a ten-minute walk from Seongsu Station exit 3. People come for New York-style banana pudding cake served in big cups, in six flavors at 8,500 won each, along with signature coffees such as a latte dusted with black pepper. It also sells wine and champagne, with bottles discounted before 4 p.m. Two people sharing one pudding with two drinks spend about 20,000 won. We read 30 posts dated 17 August to 5 October 2026. We set aside 12 that only matched because 'hahaha' is a laugh; of the 18 about this cafe, 16 describe a visit.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 뚝섬로 389, 성수동빌딩 1층 (성수동2가)389 Ttukseom-ro, Seongdong-gu, Seoul
- Phone0507-1338-8437
- Typical spend₩4,500 – ₩35,000
- From the station3 posts say it is walkable from the station.
- Floor areaFloor area 191 m² · Status In business
When it opens
Of 10 posts: 8 wrote Weekdays 11:00–20:00, 8 wrote Weekends 12:00–20:00.
| Weekdays | 11:00–20:00 | |
|---|---|---|
| Weekends | 12:00–20:00 | |
| Last order | 19:30 | 5 of 5 posts |
Rows without a count: 8 of 10 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
- Space is what people mention most. Of the 12 posts that talk about the room, 10 call it spacious, and several point specifically to the wide gaps between tables. One likened it to the old warehouse cafes Seongsu used to be full of. Posts describe videos projected on one wall and camping-chair seats along the windows.
- All 6 posts that mention portions say they are big. One says a single pudding could pass for a meal if you ate it alone; another, after pudding plus cream lattes, said they had gone well past their sugar limit.
- Dogs are a regular sight. Five posts either saw dogs inside or came with their own; one regular says they have been coming since their dog was palm-sized and has filled the stamp card several times.
- Six posts note 40% off bottles of wine and champagne before 4 p.m.; one gives Cruset Blanc de Blancs at 21,000 won before 4 and 35,000 after, bottles only. None of the visitors actually say they ordered alcohol.
2 more
- A pillar is covered in signatures, which 4 posts describe as celebrity autographs. Fans rent the space for idol birthday events: one weekend visitor arrived on a day booked by fans of SEVENTEEN's S.Coups, and another found a fan event for a male idol under way.
- It works for laptops: 2 posts found power outlets under or at every table, and 2 saw the wi-fi notice.
What 15 bloggers said
banana puding keikeu
Roomy
We read all 15 in full. The most common claims are “Roomy” (10) and “Sweet” (6).
What they liked
Things you can check on site
- Coffee served 13 of 15 posts
- Wine served 7 of 15 posts
- Discount offered 6 of 15 posts
- Dogs allowed 5 of 15 posts
- Signed celebrity photos 4 of 15 posts
- Large windows 3 of 15 posts
- Reachable by transit 3 of 15 posts
- In a basement saying it is not 2 of 15 posts
- High ceiling 2 of 15 posts
- Seats to sit and eat 2 of 15 posts
- Review event 2 of 15 posts
- Wi-Fi 2 of 15 posts
- Phone charging 2 of 15 posts
- Coupon 1 of 15 posts
- Air conditioned 1 of 15 posts
- Beer served 1 of 15 posts
- Parking capacity 1 of 15 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Parking
4 posts say you can park. None say you cannot.
| Posts saying you can park | 4 of 15 posts |
|---|
There is free parking behind the building. Of the 6 posts that mention parking, 4 describe it first-hand and 2 copy the cafe's notice. You move a traffic cone marked HAHAHA yourself and park; spots cannot be reserved, so it only works if one is free. One visitor guessed it holds five or six cars.
Who came, and with whom
- Date 6 of 15 posts
- Came by car 2 of 15 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
3 posts say it is walkable from the station.
Getting inside
| In a basement | yes 0 · no 2 (of 15 posts read) |
|---|
No one says whether there is a step at the door or whether they came in with a wheelchair or stroller. That means we don't know, not that there is no step. Two posts confirm it is on the ground floor, and one only says the door is unusual.
No one says whether the restroom is inside the cafe. Separate men's and women's restrooms appear only in one post's copied listing.
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 disclosing payment2 of 15 posts
- Someone else paid1 of 15 posts
- Posts saying they paid themselves1 of 15 posts
- Posts saying nothing either way11 of 15 posts
Posts that followed a TV spot
Of the 17 posts we gathered, 2 went up on a single day right after a TV spot and show no sign of a visit. They retell the broadcast, so we left them out of the counts.
We do not discard them. That a TV spot produced a burst of posts is itself something worth knowing about a place, and a star rating will not show it.
When the posts appeared
Month by month
| Month | Posts |
|---|---|
| 2026-08 | 9 |
| 2026-09 | 5 |
| 2026-10 | 1 |
What we do not know
- Some posts look like one campaign. Eight posts from 18 August to 12 September 2026 end with the same five hashtags, yet only 2 of them disclose sponsorship and the rest say nothing. One other post says it received a free voucher. That may explain why the praise is so uniform.
- All opening hours are copied from listings. Of the 10 posts that give them, 8 say 11:00-20:00 on weekdays and 12:00-20:00 on weekends, and 5 add last orders at 19:30. One says 11:00-20:00 daily and one gives 11:00-20:00 with no days. Only one mentions closing days, copying 'none'. We don't know how regular customers are handled on fan-rental days.
- Prices barely vary across posts: pudding cake 8,500 won, Americano 4,500, espresso cream latte 5,800, ades 5,800. Only the pepper coffee differs, with two visitors paying 6,200 won and one post copying another site listing 5,800. These are cafe prices, not the cost of a meal.
- Five posts copy the phone number 0507-1338-8437. No one says whether you can book a table; posts only mention the space being rented out for events.
- No post mentions queuing or waiting. One visitor got a window seat on a weekday afternoon and another recommends it for people who would rather not queue, but nobody describes a weekend crowd.
- Posts that say who they came with are 6 couples or spouses and 2 people who drove. None came with friends or with children, so we can't say how it works for kids.
Sources (15)
Every number above was counted from the posts below.
- 하하하성수 카페 | 바나나푸딩 6가지 맛, 4시 전 샴페인 40% 할인 2026-10-04 · 시안의 인생나기
- 성수 카페 푸딩과 커피가 맛있는 힙한 공간 하하하 성수 Hahaha Seongsu 2026-09-26 · A Room of One's Own · via Daum
- 성수 애견동반_하하하 성수 2026-09-15 · 집에 가는 이유 · via Daum
- 성수카페거리 분좋카 바나나푸딩 맛집 주차되는 하하하성수 2026-09-14 · MJ 테이스티 · via Daum
- 하하하 성수 분좋카 바나나푸딩 커피 디저트 맛집 뚝도시장 카페 2026-09-12 · 다 먹는 블로그 · via Daum
- [헤공 일상]알러지 검사/바뷔치/산도 맛집 코메베이크/백곰참치 배달/고성동 무돼포/서울 결혼식/픽스... 2026-09-02 · 공 잇-로그 · via Daum
- 성수동 카페 추천 애견동반 가능 하하하성수 내돈내산 후기 2026-08-24 · ❣️현망이의 여행기록장❣️ · via Daum
- 성수동디저트 성수역카페추천 작업하기좋은카페 하하하성수 2026-08-23 · 헤이지니 일상 알려줘 · via Daum
- 성수동디저트 성수역카페추천 하하하성수 (바나나푸딩맛집) 2026-08-21 · O N D O L O G · via Daum
- 성수동디저트 추천 뚝도시장카페 찾는다면, 바나나푸딩 맛집 하하하 성수카페 2026-08-21 · 밸류크리에이터 : 세상의 모든 것 · via Daum
- 성수동디저트 성수역카페추천 [하하하성수] 2026-08-21 · 당근님의블로그 · via Daum
- 성수동카페 데이트코스 하하하성수 분좋카 카페 2026-08-19 · MY PICK.ZIP · via Daum
- [성수동 카페] 바나나푸딩이 있는 뚝도시장카페 하하하성수 2026-08-18 · 춘간지의 간지나는 일상 · via Daum
- 바나나 푸딩이 궁금해서 가본 성수동디저트 하하하성수 2026-08-18 · 초이의 미니멀 돈 관리 · via Daum
- [성수] 성수역 카페추천 성수 주차 가능한 분좋카 '하하하성수'에서 바나나 푸딩 맛집 🍌 2026-08-17 · zip. · via Daum
Of 369 candidate posts we opened 86 and kept 15 as evidence. We stop once 30 are confirmed: beyond that the counts grow in proportion without changing the answer.