This is the Hanchon Seolleongtang outlet run by Park Sun-ja (Kim Hae-sook) in Mother of Mine/My Prettiest Daughter in the World (세상에서 제일 예쁜 내 딸) (KBS2, 2019).
This branch of 24-hour ox bone soup eatery Hanchon Seolleongtang [한촌설렁탕 북가좌점] is located in Seoul’s neighborhood of Bukgajwa [Bukgajwa-dong/북가좌동] in the Seodaemun District [Seodaemun-gu/서대문구].
67 Eungam-ro, Bukgajwa-dong, Seodaemun-gu, Seoul, South Korea
서울특별시 서대문구 응암로 67
(서울특별시 서대문구 북가좌동 307-1)
Jeungsan Station [증산역], Seoul Subway Line 6, Exit 1
(11 mins walk)
— submitted by Mich KDL