As I understand, this is a cafe owned by Changmin’s mom??? Or at least she works at it. This cafe is located in Apgujeong Rodeo. And I have found various fan accounts where fans have seen him there, so maybe he stops by a lot?? This is a fun fan account, and she says if you see him there, you should not hesitate to approach him for a picture or autograph, because he’d happily give you one. ^^
Here’s the address: 서울특별시 압구정로 330 1층 112호 / Seoul, Apgujeong-ro 330, #01-112
Hours: 10am-10pm
Directions with pictures
General informations/map/directions
Here’s a map you could show someone and ask for help once you get to Apgujeong Rodeo (Bundang Line/ 분당선), or if you can read Korean yourself, then bon voyage!