Oh Yeon Doo is a Korean language instructor who delivers online lectures – and has become something of an internet celebrity. Gong Tae Kyung meanwhile is a talented obstetrician and gynecologist from a prestigious family who specializes in infertility treatment. He has no intention of getting married. Both are happy with their lives, and think they are successful...until Oh Yeon Doo discovers she is pregnant! The duo decides to try to engineer a “fake” contractual relationship – and Gong Tae Kyung convinces Oh Yeon Doo to become his “wife.” But this move proves to be tricky. Jang Se Jin, Gong Tae Kyung’s brash first love – now a powerful figure at a major firm – wants to have a say in all this. Also what is incredulous about all of this is the involvement of Oh Yeon Doo’s boyfriend and investment advisor Kim Joon Ha. Will Cupid be able to sort out this tangled mess of romance?