Oh Yeon Doo is a successful Korean language instructor who teaches online classes and gains a massive following. On the other hand, Gong Tae Kyung is a highly skilled obstetrician and gynecologist specializing in infertility treatment. He comes from a well-respected family and has no plans of ever tying the knot. Oh Yeon Doo's world is shattered when she discovers that her boyfriend of one year, Kim Joon Ha, has been cheating on her and that she is pregnant with his child.
Their paths always seem to cross at the most unexpected moments, and they end up helping each other out. To avoid an arranged marriage set up by his family, Gong Tae Kyung proposes a fake marriage contract with Oh Yeon Doo, making her his "wife." However, things get complicated when Jang Se Jin, Gong Tae Kyung's impulsive first love, and Kim Joon Ha, Oh Yeon Doo's ex-boyfriend and the father of her child, interfere.
In the midst of all this chaos, Oh Yeon Doo has to deal with the challenges of pregnancy, while trying to sort out her feelings for Gong Tae Kyung. She continues to deliver her online lectures despite her condition, and her popularity only grows. Will Cupid be able to bring clarity to this complicated web of romance and relationships?
