M.I.L.K. disbanded, Seo Hyun Jin remained relatively inactive until the end of 2005, when she landed a major role in the Seensee Musical Company's production The Sound of Music . In 2006 she participated on the OST of the popular drama Goong . Discography Compilations [2003.06.23] 2003 Summer Vacation in SMTOWN.com (#2 Paradise (SM