
Series, the Korean fashion label known for its raw streetwear edge, has joined forces with the iconic Japanese manga and anime Great Teacher Onizuka (GTO) for a limited-edition collaboration pop-up at RSG Seongsu. Browse exclusive apparel, accessories, and graphic pieces that channel Eikichi Onizuka's biker rebel spirit. The Seongsu setting, with its mix of warehouses-turned-galleries and indie cafes, makes the perfect backdrop for this culture crossover.
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Wondering about Series x GTO Pop-up? A Korean local will look into it for you — how to get there, what to order, whether it's worth it. Free on WhatsApp.
Ask a local5-min walk from Seongsu Station (Line 2) Exit 3, inside RSG Seongsu.

Pokémon Mega Festa launches May 1 with three Seongsu pop-ups, Musinsa S1 wraps grand opening, Stray Kids SKZOO, New Balance × Kian84, K-beauty drops & last-call closes. 15 free pop-ups for Apr 28 – May 4, 2026.
Experience the heart of Korean culture in Insadong. From centuries-old tea houses to vibrant modern art spaces.
K-beauty collabs, streetwear drops, and a luxury jewelry lab — your complete guide to Seongsu's hottest pop-ups this week.