Apparently, I have been to Shim's Tapas, but I can't remember because I was completely trashed that day. Hmmmm...Now these pictures do look a little similar. Anyway, Food911.comhttp://www.foodcoma911.com/2009/12/shims-tapas.html did a write-up on the place. A Bloody Mary Oyster Shot sounds great.
Address: 서울시 마포구 서교동 328-28 1F
Direction: Line 2 Hongdae University station (홍대입구 역) exit 4 immediately turn right at 농현 bank. Then, a left at Family Mart. After 50 meters, turn right at 뚝탁 restaurant and walk straight another 50 meters and turn left at Market M. Shim's Tapas will be on your right.
Go here to see the rest.