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Oh Ha-ra, a prominent divorce lawyer, suddenly faces two trials: first is the divorce suit by a top star who came with a prenuptial agreement, and the other is the return of her ex-husband Gu Eun-beom... who ran away after cheating on her!
Ha-ra thinks Eun-beom is trying to reconcile by taking her out on a date... but he sets her up for a blind date! Meanwhile in the court, Ha-ra has to deal with a divorce suit regarding marital sexual issues.
Ha-ra's heart suddenly wavers because of Jae-gyeom. But this doesn't last long as anger takes over when she sees Eun-beom with Ki Seo-hee! Thinking that Eun-beom's still seeing Seo-hee under the pretext of the custody lawsuit, Ha-ra takes on the other side's defense.
When Eun-beom is on the verge of losing the custody lawsuit because of Ha-ra's hidden card, he reveals that his affair with Seo-hee was all fake. What is the truth behind their divorce?
Ha-ra starts dating Jae-gyeom. However, after a few days of dating, she gets swept up in a conflict with his mother, which puts her relationship with Jae-gyeom in crisis. Meanwhile, at the office, she gets overwhelmed as she starts to work on a divorce lawsuit caused by a conflict between a woman and her mother-in-law.
Eun-beom accidentally finds out a huge secret about Ha-ra's father. As a result, he continuously hovers around Ha-ra and can't decide whether to tell her or not. Meanwhile, Bi-chwi and Si-wook deal with a divorce case caused by personality differences, which puts their secret relationship in danger of being exposed.
Eventually, Ha-ra finds out about her father's secret, which greatly shocks her. Because of this, Eun-beom takes a case on her behalf, and by doing this, Ha-ra suddenly feels some subtle feelings towards him.
Realizing that she still in love with Eun-beom, Ha-ra sets up a crazy plan. She starts telling Eun-beom that she loves him and they should get back together and if she gets rejected ten times, she'll get over him completely. Meanwhile, Eun-beom reflects on her complicated relationship with Ha-ra while defending the murder case that deals with complicated love and hate.
Ha-ra and Eun-beom finally got back together. However, when Ha-ra takes on the divorce suit of her cousin, who lived as a DINK, a serious question arises between them: whether or not to have a child.
Ha-ra learns the whole story of Eun-beom's younger sister's death and finally understands Eun-beom's fear of raising a child. On top of that, seeing Han-gil endure all kinds of humiliation due to his ex-wife's dispute over animal custody makes Ha-ra think about things.
Ha-ra and Eun-beom have repeatedly agonized about having a child but eventually broke up due to a minor misunderstanding. Ha-ra decided to take on the divorce proceedings of clients who broke up and reunited several times, just like them.
Eun-beom is tormented by the breakup and eventually decides to leave the office again. Ha-ra tries to understand Eun-beom and helps him when his mother files a lawsuit due to the worsening conflict between them.
