Before you come.

On the second floor of 38 Eulji-ro 43-gil, Jung-gu, Seoul, inside Dongdaemun Fashion Town — the building with an Ediya Coffee and a bakery at street level. It is about 200 m (a 4-minute walk) from Dongdaemun History & Culture Park Station on Lines 2, 4 and 5, and about 350 m (6 minutes) from Dongdaemun Station on Lines 1 and 4.

Open every day from 10:30 to 22:00, with last order at 20:40. No regular weekly closing day is listed, so for public holidays please call 02-2268-2059 before you come.

Soy-marinated female crab with roe — ₩96,000 per kilogram. Female blue crab heavy with roe is steeped in the house soy marinade and aged three days under refrigeration. Dining alone, most people start with the Soy-Marinated Female Crab Set at ₩36,000; in a group, with the Simple Happy Set at ₩138,000 for two to three people.

Yes — there are three sets for one. The Soy-Marinated Female Crab Set is ₩36,000, the Spicy Marinated Crab Set ₩23,000 and the Soy-Marinated Shrimp Set ₩22,000, and each comes with marinated crab, soy-marinated shrimp, salt-grilled shrimp and fried-egg bibimbap. As the brand story puts it, this is meant to be a comfortable place to eat alone.

Menus are provided in Korean, English, Japanese and Traditional Chinese. The menu page on this site is available in the same four languages.

Yes, takeout is available: premium soy-marinated female crab with roe at ₩96,000 per kilogram, spicy marinated crab at ₩54,000 and soy-marinated shrimp at ₩33,000. For courier delivery or carrying it out of the country, please ask our staff or the counter.

Dining time is 80 minutes. A KRW 3,000 charge may apply for leftover food, and water, aprons and the salad bar are self-service. Wi-Fi is open with no password.

There are two. Post the restaurant to your Instagram feed or story and tag @happygejang__official, or scan the in-store QR code and leave a Google review — either one gets you a complimentary soft drink. Both offers are printed on the in-store menu.