This is where Seo Dae-young (Jin Goo) and Yoo Shi-jin (Song Joong-ki) carry out their their three day, three night drinking mission once back in South Korea in episode 13 in Descendants of the Sun/Descended From the Sun (태양의 후예) (KBS2, 2016).
This branch of Seorae BBQ Restaurant is located in Seoul’s neighborhood of Hwigyeong-dong [휘경동] in the Dongdaemun District (Dongdaemun-gu/동대문구).
Address: 191 Hoegi-ro, Hwigyeong 1(il)-dong, Dongdaemun-gu, Seoul, South Korea
서울 동대문구 회기로 191
(서울 동대문구 휘경동 191-5)
Geolocation: 37.590240, 127.057104
Getting here: Hoegi Station [회기역], Seoul Subway Line 1 / Jungang Line, Exit 1
— submitted by Marion KDL