Gangnam Sink Anime Details and Episodes The heart of South Korea has turned into a massive sinkhole. In the midst of Gangnam, as the city crumbles and sinks, ordinary people fight for their… Series info Watch free DetailsFormatMangaStatusAiringSourceOriginalCountryKorea GenresThriller TagsFull ColorLong Strip RecommendationsEoneunal Gapjagi Seoul-eunGoei HotelKkorijapgiJongmalgwonyuSurvival LogRrrChuksal