A reclusive ex-cop reenters the game as an insurance investigator, searching for clues in crime scenes perfectly staged by a serial killer in her midst.

Hee-ra is the owner of the Witch's Diner where employee Jin and intern Gil-yong work with her. Guests are welcome to the Witch's Diner where they sell their souls for their wishes to come true.

“How to Be Thirty” will be a relatable romance centering around the work and love lives of women who have just entered their 30s. The drama follows the story that unfolds when 30-year-old webtoon author Seo Ji Won meets her publisher Lee Seung Yoo, who is also her first love from middle school.

Against his wishes a veterinarian from the big city relocates to the countryside, where he meets a policewoman, a town insider with a friendly secret.