Baek Hyun-woo and Hong Hae-in navigate a tense relationship, both at home and at work. But upon deciding his future, Hyun-woo pays a visit to his family.

After Hae-in reveals her grim news to Hyun-woo, he begins to treat her nicely. Meanwhile, Hae-in's old classmate returns to Korea and joins Queens Group.

As Yoon Eun-sung increasingly interlopes in Hae-in's life, Hyun-woo begins to feel jealous. Hae-in later shows up for Baek Du-gwan in his time of need.

As Hyun-woo and Hae-in spend time in his hometown, they awkwardly navigate their complex feelings. Hae-in later receives bad news about her diagnosis.

Hyun-woo unexpectedly shows up in Berlin to secure a treatment for Hae-in. Meanwhile in Korea, Hong Man-dae faces a crisis at his company.

Feeling betrayed by Hyun Woo, Hae In pushes him away and becomes cold. Back in Korea, Hyun Woo begins to unravel a scheme against Hae In's family.

Despite being in a tense situation with Hae In, Hyun Woo remains firm about staying in the company as his suspicions towards Eun Sung grow even stronger.

Hae-in and her family go into hiding in Hyun-woo's hometown to figure out their next move. Eun-sung discovers the truth about Hae-in's health.

Eun-sung tracks down Hae-in, presenting her with an ultimatum. Meanwhile, Hyun-woo skillfully uses leverage to get Grace Ko on the Hong family's side.

Hae-in makes a shocking announcement at a press conference. Hyun-woo launches a risky evidence-collecting crusade to save Queens Group.

Haein's symptoms worsen as she suffers from hallucinations, which Eun-sung takes advantage of. Soon after, Hyun-woo finds himself captured and in danger.

The Hong family initiates a counterattack against Seul-hee and Eun-sung. Hyun-woo and Hae-in get to experience a freshly renewed life as 'newlyweds.'

After Hae-in shows hesitation about the surgery, her loved ones try to persuade her. Meanwhile, Eun-sung heads to Germany with a sinister plan.

As Hae-in recovers from surgery, Eun-sung tries to stay right by her side. Meanwhile, Hyun-woo searches for evidence to vindicate himself.

Eun-sung executes his final plan to make Hae-in his own. As she tries to escape from his grasp with the help of Hyun-woo, will they finally find peace?