Jaejoong and Eunhye grew up together and they were always there for each other. But fate is not on their side when Jaejoong studied overseas beside Eunhye because of her step mom. Yuri, her step sister envy of her so she wants Eunhye suffer by taking everything away including Jaejoong. While her step brother, Yoochun loves her and protect Eunhye from his mother's punishment to Eunhye. After 5 years, Jaejoong arrive at Korea and promised to Eunhye met at their favorite place but Eunhye gets into a car accident while on her way. Yoochun saw this incident so he hides her because she happens to lose her memory. Jaejoong believe that Eunhye is dead and he engaged with Yuri. While he went to work, he visit his and Eunhye favorite place. He shocked that he saw Eunhye lookalike but she happen lost her memory.

What Jaejoong will do?