- Drama: Hometown Cha-Cha-Cha (English title) / Seaside Village Chachacha (literal title)
- Revised romanization: Gaetmaeul Chachacha
- Hangul: 갯마을 차차차
- Director: Yoo Je-Won
- Writer: Shin Ha-Eun
- Network: tvN
- Release Date: August 28, 2021 —
- Runtime: Sat. & Sun. 21:00
- Language: Korean
- Country: South Korea
A love story set in the seaside village of Gongjin.
Yoon Hye-Jin (Shin Min-A) works as a dentist. She is mostly a realist, but due to her rightfulness, which is only a tiny part of her mind, her life changes. She ends up moving to the seaside village of Gongjin. There, Yoon Hye-Jin meets Hong Du-Sik (Kim Sun-Ho). She becomes curious about him. Hong Du-Sik is called Chief Hong by the local residents. He is a handsome and smart man. Officially, he is unemployed, but he always seems busy. If somebody needs help, Hong Du-Sik is the first one to appear and provide help.