Ha Hee Ra ( Dummy Mommy) takes on dual roles in MBCs 2013 revenge melodrama Youre Great, Really! (a.k.a. Good For You) co-starring Lee Hyung Chul ( Pasta), Shim Hyung Taek ( Lets Eat) & Kim Bin Woo ( Stranger Than Paradise). Ji Soo (Ha Hee Ra) was once deeply in love with Woo Sung (Lee Hyung Chul), but he had big plans for his future that did not include her. He leaves a pregnant Ji Soo behind, & instead meets & marries the wealthy Sun Mi (Kim Bin Woo). Meanwhile, Ji Soo marries Ki Chul (Park Joon Hyuk) in hopes of giving her child a father, but the marriage is not a happy one. When Woo Sung crosses paths with the struggling Ji Soo years later, he feels guilty & lends a helping h&, but this creates misunderstandings with his wife. Ji Soos twin sister Ji Won poses as Ji Soo & confronts Woo Sung; in the ensuing altercation, Ji Won falls to her death. Ji Soo then takes on a new identity as Ji Won & sets out to avenge her sisters death.