Former DIA member Ki Hee-hyun (31) and model Lee Sang-yoon (29) have officially announced their romantic relationship. On the 23rd, both stars shared footage on their respective social media accounts captured from CCTV cameras during their trip to Osaka, Japan. The posts, captioned with messages about creating memories in Osaka, confirmed the couple's relationship status and garnered significant public attention for their unique and candid reveal. - Ki Hee-hyun and model Lee Sang-yoon confirmed their relationship by simultaneously posting CCTV footage from their trip to Osaka, Japan. - The couple's public announcement through creative social media content has been widely discussed as a stylish "self-reveal" of their romance. | Former DIA member Ki Hee-hyun (31) and model Lee Sang-yoon (29) have officially announced their romantic relationship. On the 23rd, both stars shared footage on their respective social media accounts captured from CCTV cameras during their trip to Osaka, Japan. The posts, captioned with messages about creating memories in Osaka, confirmed the couple's relationship status and garnered significant public attention for their unique and candid reveal. - Ki Hee-hyun and model Lee Sang-yoon confirmed their relationship by simultaneously posting CCTV footage from their trip to Osaka, Japan. - The couple's public announcement through creative social media content has been widely discussed as a stylish "self-reveal" of their romance.