Waves

Bo-yoon is a personal statement ghostwriter who boasts a 99% passing rate and 100% customer satisfaction. Her life is a burden every day as she prepares for the civil service exam and work part-time at a supermarket. While writing personal statements for her clients Kang-min, Se-min, and Tae-ho to get a job, she encounters a complaint from a client and becomes entangled in an unexpected incident. Bo-yoon's life gradually falls into uncontrollable difficulties and she faces a new crisis...

For three years, Nam-cheol and his girlfriend, Joo-hee, have lived together. A rent hike pushes them to search for a new place—only to find worse options. Joo-hee is advised to apply for the newlywed housing program with Nam-cheol. Meanwhile, Nam-cheol's mother—trapped with a conservative husband—urges Nam-cheol to apply for the youth rental housing lottery so she can move into the unit herself, effectively "graduating from her marriage." Nam-cheol must choose just one of the two programs: "graduating from marriage" or marriage. Will they find happiness in the end?

Jisoo is a medium who comforts wandering spirits. She visits the parents of a Catholic, who cut off their relationship after Jisoo taking a medium role for her life, to hold her sister’s memorial ceremony. Jisoo's mother, who strongly believed that Jisoo was used in evil spirits, suddenly asks Jisoo to talk to her dead eldest daughter.

When Yoonseul's mother returns home from abroad, she tells Yoonseul about a dream she had when she was pregnant with Yoonseul.