The series is story of love and break ups in the romantic world. It illustrates the present scenario in the context of fashion industry. Ha Yeong-eun (Song Hye-kyo) is a beautiful, trendy team leader of design department of a fashion company called 'The One'. Yoon Jae-gook (Jang Ki-yong) is a successful freelance photographer.
河英恩(宋慧乔饰)为时尚公司“The One”的设计组组长,在高工时、高压力的环境中每日被生活压得喘不过气,导致心态渐渐变得冷漠理性。她说:
“ 比起男人,名为升迁的心肺复苏术才能延长我的寿命。[6] ”
在时装周的派对上,英恩邂逅自由摄影师尹在国(张基龙饰),并发生一夜情。之后命运之神让两人再度巧遇重逢,两人难掩内心悸动,谱出一段姐弟恋情缘。