Han Woo-Tak (Jung Hae-In) asks Jung Jae-Chan (Lee Jong-Suk) and Nam Hong-Joo (Bae Suzy) to buy socks and pajamas and perilla leaves and pickled radish for him in episode 14 of While You Were Sleeping (2017) (당신이 잠든 사이에) (SBS, 2017). They end up in this household goods store chain and Woo-Tak orders them around via FaceTime to buy things for him; sleeping masks, a back scratcher and a plush toy end up in the basket among others.
Miniso Gangnam Station Branch [미니소강남역점] is located in Seocho 4(sa)-dong [서초4동] a neighborhood in Gangnam, Seoul.
Address: 13 Seocho-daero 77-gil, Seocho-gu, Seoul, South Korea
서울특별시 서초구 서초대로77길 13
(서울특별시 서초구 서초동 1317-7)
Geolocation: 37.498842, 127.026136
To get here: Gangnam Station [강남역], Line 2, Exit 9 or 10
— submitted by Marion KDL