Kangwoois a handsome, nice guy from chaebol but he loves an ordinary woman named Wall-ha, studying at the same University. They promise to marry, but she dies suddenly so their love doesn’t last long. One year later, Ju-Hae, looking exactly like Wall-Ha, transferred to his University. She brings him back the memory of Wall-ha and eventually he falls in love with her. One day, they go on a trip and stay in the old villa with university friends, including Sung Kyoon, who‘s an outsider and has got a big crush on wall-Ha for a long time. Meanwhile, Kangwoo& Ju-hae takes a walk, Sung kyoon claims that Kang-woo has been involved in Wall-ha’s death but nobody believes him and they start to doubt Sung Kyoon instead.