Goo Bon-seung, Kim Sook Romance Probed on KBS2  조선일보[Comprehensive] Yoon Jung-soo: “♥Won Jin-seo worries someone might try to win me over… Friends ask, ‘Are you dating Cha Eun-woo?’” (Problem Child in House)  매일경제A high-priced camera gift for Kim Sook and Koo Bon-seung, a special internal aid to YouTube (Ok Moon-ah)  SportsChosunKoo Bon-seung and Kim Sook fuel dating and October wedding rumors on Korean variety shows – CHOSUNBIZ  Chosun BizKim Sook Declares She Won’t Attend Yoon Jung-soo’s Wedding?…“Wouldn’t It Be Strange If I Went?” (‘Problem Child in House’)  매일경제