Ki Hee-hyun and Lee Sang-yoon Go Public With Osaka Romance

Former DIA member Ki Hee-hyun (31) and model Lee Sang-yoon (29) went public with their relationship on June 23. Ki posted a video to Instagram captioned "Making memories with CCTV in Osaka for the first time."

The clip shows them walking hand-in-hand through an Osaka street, then spotting themselves on a CCTV monitor and waving at the camera. Both shared photos from the same Osaka locations on their respective SNS accounts. Lee Sang-yoon left a comment on Ki's post — "행복했다" ("I was happy") — making his feelings clear.

Ki debuted with girl group DIA in 2015 as the group's leader and main rapper. She placed 19th in the final rankings on Mnet's Produce 101 in 2016. She later transitioned to acting, appearing in various films and dramas. After DIA's activities ended, she began working as an employee at an entertainment agency.

Lee rose to public attention last year on Channel A's dating program Heart Pairing, where he became known by the nickname "메기남" (catfish man). During that broadcast, allegations surfaced that he was dating another woman. He denied them, stating "It is completely untrue. It is groundless false content," and indicated he would pursue legal action. (The Osaka CCTV reveal reads quite differently from that moment.)

Neither side's agency has issued a separate statement beyond the couple's own posts.