On July 31, Hyun BinŌĆÖs agency, VAST Entertainment, stated the rumors to be groundless and added that itŌĆÖs not worth responding to. Song Hye KyoŌĆÖs side also firmly drew a clear line. Rumors started to earlier that Hyun Bin and Song Hye Kyo are dating again started to spread around Weibo, a Chinese SNS channel. Everything began when a netizen released a photo of two people walking their dogs, and Chinese entertainment media reported it. Meanwhile, Hyun Bin and Song Hye Kyo started dating after starring together in the drama The World That They Live In in 2008, but officially announced their breakup in 2011 after two years of dating. Source (1)

Chinese Media Report Hyun Bin and Song Hye Kyo Started Dating Again   Two Actors Immediately Deny the Rumors - 42