The above picture is the picture of Tony from H.O.T house. The location is in Pyeongchang-dong, Seoul South Korea. The specific address is: 서울특별시 종로구 평창동 479-1 (서울 종로구 평창30길 41)
http://koreandramaland.com/listings/pyeongchang-dong-mansion-no-479-1/
The above picture is the picture of Sung Si-Won’s house. The location like Tony’s house is located in Pyeongchang-dong, Seoul South Korea. Different from what I expected the location to be as the fictional setting in the drama is in Gyeongsang-do. I wonder why they decided to film in Seoul, when they could have easily found another location in Gyeongsang-do? The specific address is: 서울특별시 종로구 종로구 평창동 458-2 (서울 종로구 평창31길10)
http://koreandramaland.com/listings/pyeongchang-dong-mansion-no-458-2/
The above picture is the picture of the high school in the drama. Again located in Seoul, despite the fictional drama setting being located in Gyeongsang-do. The specific address is: 서울특별시 강서구 가양2동 1468 (서울 강서구 허준로5길15)
http://koreandramaland.com/listings/yeongdeungpo-technical-high-school/
The above picture is the picture of the cafe where Sung Si-Won and Yun Yun-Je reunites after not seeing each other for a long time. The name of the cafe is CAFE DE TTOMA (드또마카페). Another drama that was filmed here is The Heirs. The location is in Hongdae, Seoul South Korea. The specific address is: 서울특별기 마포구 독마로7길40 (서울 마포구 서교동 404-29)
http://koreandramaland.com/listings/cafe-de-ttoma/
The above picture is the picture is where Yun Yun-Je works. It is named the Seoul Central District Court (서울장앙지방법원) both in the drama and in real life. It is the filming location of various legal dramas in Korea. The location is in Seocho-dong, Seoul South Korea. The specific address is: 서울특별시 서초구 서초중앙로 157 (서초동 1701-1)
http://koreandramaland.com/listings/seoul-central-district-court/