15 Must-Visit Pop-ups in Seongsu This Week (Apr 28 – May 4): Pokémon Mega Festa, Musinsa S1, K-Pop

Seongsu hits a turning point this week. Pokémon Mega Festa 2026 launches Friday May 1, dropping three simultaneous Seongsu pop-ups for the franchise's 30th anniversary — Pokémon Secret Forest at Seoul Forest, Pokémon 30th Anniversary Party, and Ditto Playground all open the same day. On the fashion side, Musinsa Megastore Seongsu S1 is in its grand-opening week, Stray Kids' SKZOO travel pop-up is drawing K-pop fans by the hundreds, and the New Balance × Kian84 running collection keeps pulling weekend crowds.

It's also a brutal closing week: Musinsa Standard × No Hong-cheol wraps Wednesday April 29, EYANG closes Thursday April 30, and three other April-only popups end on the 30th. We've sorted everything into six zones — Pokémon, Last-Chance, K-Pop & Character, Big Fashion Drops, K-Beauty, and Food/Coffee — so you can plan a single afternoon or stretch it across the long Children's Day weekend.

Pokémon Mega Festa 2026 — Three Pop-ups Launch May 1

Pokémon's 30th anniversary global tour kicks off in Seongsu on Friday May 1, and Seoul gets three concurrent venues. All three are free entry, all three are walking distance from each other, and weekend day-1 lines are guaranteed to be intense. If you're flexible, come Sunday May 3 or Monday May 4 — you'll still hit launch week without the opening-day chaos.

1. Pokémon Secret Forest at Seoul Forest

The headline event. Pokémon takes over an outdoor pavilion at Seoul Forest itself, building a forest-themed walk-through with photo zones, character meet-and-greet appearances, and a dedicated merchandise tent. The location matters — it sits inside one of Seoul's most-loved parks, so you can layer it with a picnic, a deer-spotting walk, or a stroll over to the Han River.

Open May 1 – June 21, daily. From Suin-Bundang Line Seoul Forest Station Exit 4, follow the park signs (8 min walk). Pro tip: weekday afternoons are dramatically quieter than weekend mornings.

2. Pokémon 30th Anniversary Party Pop-up

The official Pokémon Center 30th Anniversary store, hosted at Trendpot by Olive Young N Seongsu. This is where the limited 'Pika Pika! Pikachu' plushies, keychains, and the new 'Birthday Party Edition' merchandise drop — most items are Korea-exclusive for the duration of the run.

Open May 1 – May 31, 10:00 – 22:00 daily. Inside the Olive Young N Seongsu building on Yeonmujang-gil. Important: Day-one merch tends to sell out by mid-afternoon — arrive before 11 AM if you have a target item.

3. Ditto Playground Pop-up

The cute one. The whole pop-up centers on Ditto — pink, blob-shaped, currently a TikTok favorite — with a playground-themed interior, photo cubes, and Ditto-only merchandise that you won't find at the other two venues. Family-friendly and very easy to combine with the Anniversary Party (4 min walk apart).

Open May 1 – June 21. From Seongsu Station (Line 2) Exit 3, 7-minute walk. Free entry, no reservation needed.

Last Chance — Closing This Week

Two strong April-only pop-ups end before Friday. If you've been putting either off, this is the deadline.

4. Musinsa Standard × No Hong-cheol — CLOSES APRIL 29

Musinsa's house brand teams up with No Hong-cheol, the Korean comedian whose 'Lucky Guy' aesthetic became an unexpected fashion meme. The pop-up at Musinsa Campus E1 stages No Hong-cheol's signature pieces alongside Musinsa Standard staples and a quirky photo zone.

Closes Wednesday April 29 at 22:00 — only two days left after the guide drops. From Seongsu Station (Line 2) Exit 3, 6-minute walk along Yeonmujang-gil.

5. EYANG — CLOSES APRIL 30

Y2K-leaning Korean streetwear pop-up that quietly built a cult following among Seoul's vintage-fashion crowd. EYANG's run ends Thursday with the full collection still on the racks — graphic tees, low-rise denim, and accessories priced for under-30s.

Closes Thursday April 30. On Yeonmujang-gil, 8 minutes from Seongsu Station Exit 3.

K-Pop, Anime & Character Picks

Three pop-ups for fandom travelers — one heavy K-pop, one designer art-toy, one made for kids visiting over Children's Day weekend.

6. Stray Kids SKZOO Travel Pop-up

JYP's Stray Kids turn their SKZOO character lineup into a travel-themed pop-up — airport-coded merchandise, photo backdrops, and limited goods that sold out at the Tokyo run last year. Expect international STAY fans on weekends.

Open through May 3. On Seongsu-i-ro 18-gil, 5 min from Seongsu Station Exit 4. Weekday afternoons are noticeably calmer than weekends.

7. HIRONO at Pop Mart

HIRONO is the moody-boy art toy series by Chinese artist Lang Lang, distributed by Pop Mart. The Seongsu pop-up runs through May 10 with the full HIRONO range — including new figurines and the secret-edition box that collectors hunt.

Open through May 10, 11:00 – 21:00. On Seongsu-i-ro, 6 min from Seongsu Station Exit 3. Tip: they restock secret editions once daily — staff will tell you the time if you ask.

8. Teenieping Children's Day Happy Festa

Korea's Children's Day falls Tuesday May 5 — and the Catalyst Teenieping offline store goes all-in for the holiday weekend with character meet-and-greets, exclusive Children's Day merchandise, and themed photo zones. If you're traveling with kids, this is the easy 30-minute Seongsu stop they'll want to return to.

Open through May 30. On Yeonmujang 15-gil. Pro tip: weekend mornings book up fast for the meet-and-greet — arrive at opening (12:00).

Big Fashion Drops

Three of Seongsu's most-talked-about fashion events of the season — the long-awaited Musinsa S1 megastore opening, a webtoon-star × sneaker collab, and the K-fashion floral icon at SPACE 257.

9. Musinsa Megastore Seongsu S1 Grand Opening

Musinsa — Korea's largest fashion platform — opens its biggest physical store ever on Seongsu-i-ro, with five floors of curated brands, dedicated K-beauty zones, and rotating brand pop-ups inside the building. The grand-opening event runs through May 3: lucky-draw events, opening-week-only collaborations, and shop-and-win campaigns.

Open May 3 last day for the grand-opening event. From Seongsu Station (Line 2) Exit 3, 7-minute walk. The store stays permanent after May 3 but the launch perks end.

10. New Balance × Kian84 Running Pop-up

New Balance's flagship Seongsu store hosts a collaboration pop-up with Kian84, the Korean webtoon artist who turned long-distance running into a pop-culture moment via 'Adventure by Accident.' The collection translates Kian84's 'I run to live' philosophy into limited apparel, sneakers, and runner-friendly accessories — plus a photo zone documenting his marathon training.

Open through July 9 at the New Balance Seongsu flagship on Yeonmujang-gil. From Suin-Bundang Line Seoul Forest Station Exit 4, 8 min walk.

11. Mardi Mecredi at SPACE 257

The Mardi Mecredi floral-graphic logo became a uniform for Korean and Japanese fashion-conscious shoppers across the past two seasons. The two-floor SPACE 257 pop-up dedicates one floor each to apparel and accessories, plus a flower-walled photo zone that's basically the building's front door.

Open through May 31. On Yeonmujang-gil, 10 min from Seongsu Station Exit 3. Tip: weekend afternoons get serious queues — try Tuesday or Wednesday for a calmer browse.

K-Beauty Picks

Two K-beauty pop-ups worth a stop, including a brand-new launch opening on April 29.

12. LUVUM PDRN Pop-up

LUVUM is one of the buzziest K-beauty launches of the season, riding the PDRN-serum wave. The Seongsu pop-up runs through May 3 with the full PDRN line, sample stations, and purchase gifts. Free entry; sample stations have a one-per-visitor cap.

Open through May 3 at Namgyeong Building, Yeonmujang-gil 81. 5 min from Seongsu Station Exit 3.

13. Mude Angel Hug Delivery — OPENING APRIL 29

Fresh launch. Mude debuts its 'Angel Hug Delivery' Seongsu pop-up on April 29 — themed installations, the new Angel Hug Glaze line, and limited-edition launch packaging. Expect K-beauty SNS coverage all weekend.

Opens April 29, runs through May 11. On Yeonmujang-gil 65, 4 min from Seongsu Station Exit 4. Important: Day-one launches in Seongsu typically peak between 14:00 – 18:00 on the first weekend — go early or late.

Food, Coffee & Picnic Picks

Two low-pressure pop-ups for breaks between the fashion and Pokémon stops.

14. Nespresso Vertuo World

Nespresso turns Yeonmujang 13-gil into a three-zone Vertuo experience — coffee tasting, a brewing demo, and a custom-photo print station. Free coffee samples are the obvious draw, but the ambient design (more lounge than retail) is what's keeping it on Seoul cafe blogs.

Open through May 3. 5 min from Seongsu Station (Line 2) Exit 3.

15. SKIPPY Peanut Butter Picnic — OPENS MAY 1

A five-day-only pop-up at Under Stand Avenue, Seongsu's outdoor container market. SKIPPY (yes, the peanut butter) builds out a picnic-themed space with branded snacks, a photo zone, and freebies tied to the Children's Day weekend. Easy stop after Pokémon Secret Forest — both are walkable from Seoul Forest Station.

Open May 1 – May 5 only. Under Stand Avenue, Wangsimni-ro 63. From Seoul Forest Station Exit 4, 6 min walk.

Practical Tips

• Go on Sunday May 3 or Monday May 4 if you want to hit Pokémon launch weekend without day-one chaos. Friday May 1 will be packed by 11 AM.
• Last-call route: Musinsa × No Hong-cheol (Apr 29) → EYANG (Apr 30) → Pokémon launch trio (May 1). One walking loop covers all five stops in ~3 hours.
• Children's Day Tuesday May 5: Korea's biggest family holiday. Teenieping, Pokémon Secret Forest, and SKIPPY Picnic are the three stops built for the weekend.
• Getting there: Seongsu Station (Line 2) Exit 3 drops you on the main pop-up street (Yeonmujang-gil); Seoul Forest Station (Suin-Bundang Line) Exit 4 is closer to Seoul Forest, New Balance, and SKIPPY Picnic.
• Free entry: Every pop-up on this list is free to enter. Budget for shopping or coffee, not admission.

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