Geum-ju, Hyun-joo, and Jung-soo fail to quit drinking. Ui-jun lectures at the county office about alcoholism, and Geum-ju, Hyun-joo, and Jung-soo are forced to attend the lecture by Gwang-ok. Time passes, and the day of the wedding Geum-ju once called off finally arrives.

A medical checkup reveals how much damage alcohol has done to their bodies, so Geum-ju, Hyun-joo, and Jung-soo decide to stop drinking right away. Ui-jun promises to grant Geum-ju's wishes if she manages to stay off alcohol for a week. But soon, a challenge emerges that puts Geum-ju's strong determination to the test.

Geum-ju loses sleep at night after Ui-jun confesses his old feelings to her. Seon-wook admits to Hyun-joo that he tried to bury his feelings, but he can't anymore. Geum-ju, Hyun-joo, and Jung-soo undergo withdrawal symptoms. Meanwhile, Gwang-ok says she's going to Seoul to take some time for herself, leaving her family surprised.