I Can Speak (2017)

"The hot-blooded grandmother Luo Yufen (played by Luo Wenji) has an upright personality and loves to fight against injustice. She has focused on reporting illegal activities in the community for many years, and is called "Ghost Grandma" by people around her. Her "opponent" is Park Min-jae (played by Lee Je-hoon), a new grassroots civil servant from the Petition Office. The two quarreled without a winner. One day..."