Ji-Young (Min Hyo-Rin) is a thorough individualist and she does not have relationship with others. Byeok-Soo (Gong Myung) is the type who can't live without having relationships with others. The KBS mini drama airs May 8-9.
Sources: HALLYU WORLD OFFICIAL | AsianWiki
Ep 1 is up on dramafire if anyone is interested in watching.