Love In Contract

Sang-eun runs a contract marriage business to single clients who need a temporary spouse, while secretly dreaming of retirement. However, she struggles to end her contract with a long-term client, Ji-ho.

Sang-eun is disappointed as Ji-ho suddenly ends their contract. Meanwhile, Hye-jin runs into his first love, Sang-eun, and is shocked to learn that she's married to his neighbor, Ji-ho.

The three-Sang-eun, Ji-ho, and Hye-jin- confront each other at the mansion. Pressured by Hye-jin's questioning, Ji-ho reveals his truth about the contract marriage. Later, Sang-eun visits Ji-ho's house with divorce papers but is attacked by an unknown assailant.

Inside the envelope Ji-ho gave her is not divorce papers, but a ticket to a concert. The two gets to extend their contract due to Ji-ho's senior judge couple met in the concert hall. Meanwhile, Hye-jin is troubled by false rumors.

Sang-eun agrees to sign a contract with Hye-jin after he pleads so desperately, and Ji-ho is unhappy with this.

Hye-jin gets Sang-eun's Tuesdays, Thursdays, and Saturdays, while Ji-ho takes Mondays, Wednesdays, and Fridays. As time passes, both Ji-ho and Sang-eun begin to develop feelings for each other while preparing for the housewarming party. However, on the day of the party, Sang-eun drinks too much, and experiences a serious blackout.

Sang-eun feels disappointed in Ji-ho, who seems unaffected by their kiss. Sang-eun and Ji-ho become awkward around each other, hiding their feelings. Meanwhile, Hye-jin's feelings for Sang-eun deepen as the two continue dating.

Ji-ho begins to express his feelings by treating Sang-eun with kindness and care. Meanwhile, Hye-jin faints from severe stress caused by Ran-hee, who keeps asking him about his relationship with Sang-eun.

Sang-eun comes face-to-face with Ji-eun, Ji-ho's ex-wife and Hye-jin's legal advisor. Ji-ho insists there's nothing between him and Ji-eun, but his reserved attitude leaves Sang-eun deep in thought. After finishing his shoot, Hye-jin goes to see Sang-eun, missing her dearly. Just then, a heavily drunk Ji-ho shows up, and the three find themselves in an unexpectedly awkward encounter.

After sharing his feelings with Sang-eun, Ji-ho surprises his colleagues at the court by showing a new side of himself. Sang-eun decides to end her contract with Hye-jin to focus on Ji-ho. Meanwhile, Ji-eun discovers that Sang-eun has been in a contract not only with Ji-ho, but also with Hye-jin.

As Sang-eun is exposed in an article, she worries that Ji-ho may be affected. Ji-ho, who receives news of a promotion from the senior judge, hides it to ease Sang-eun's concerns. Ji-ho makes a list of questions to get to know her better, and the two spend happy time together. Hye-jin encounters the stalker who attacked Sang-eun and goes to the police.

Sang-eun and Hye-jin become the center of controversy after Sang-eun's 12 contract marriages are exposed. Sang-eun tries to take all the blame, upsetting both Ji-ho and Hye-jin. After hearing about Madame Yoo from Gwang-nam, Ji-ho begins investigating her and the Ina Group. Hye-jin prepares for a press conference to defend Sang-eun.

A suspicious car accident shocks Sang-eun, rushing to the hospital. Ji-ho comforts her, and they grow closer. Hye-jin announces his breakup with Sang-eun, while Chairman Kang-jin announces him to join the group. Seon-jin, sensing a threat, tries to use Sang-eun to win his father's favor. Ji-ho begins a serious investigation into the car accident.

After retiring, Sang-eun tries to find what she truly wants to do, with Ji-ho's full support. Hye-jin, now joining the Kangjin Group, begins to shine and faces off against Seon-jin. Upset by Hye-jin's sudden retirement, Sang-eun visits him, but he deliberately distances himself. Meanwhile, she gets to know that Ji-ho met someone to fulfill Ji-eun's wish, leading to a conflict between the two.

As Sang-eun and Ji-ho dream of a happy future together, intruders sent by Seon-jin break into Sang-eun's home. Hye-jin discovers their plan to exploit the Jamie Project and tells Madame Yoo. Determined to protect Sang-eun, Madame Yoo decides to take control of everything. For the first time, Ji-ho breaks his own rules to stop it.

Since that day, Ji-ho waits for Sang-eun. Lacking the courage to return, she hesitates, and Ji-ho returns to his cold, reserved self, which makes those around him worry about him. However, through honest advice and reflection from Gwang-nam and Madame Yoo, he begins to realize his true feelings.