Woo Woo Seoul 2nd Branch is a solo-drinking bar in Gunjа where you can drink alone, serving whiskey and cocktails. The cocktail list is varied and includes the signature cocktail Aa, and outside food can be brought in. Guests can change seats and join events by QR code, and customers who come alone end up talking with people they have just met. Some guests stay for a long time, with one case of a solo visitor staying six hours.