A Good Day to Be a Dog (2023)

Han Hae Na is a single high school teacher with a dark family secret – for generations, her family has been cursed to turn into a dog at midnight for six hours, reverting back to normal only after they kiss the same person. When Han Hae Na meets a potential romantic partner, she always asks them not to kiss her. This inevitably leads the men to leave her.
One night, Han Hae Na drunkenly kisses another teacher named Jin Seo Won, whom she is not even close with as colleagues, resulting in her being cursed. Panicked, Han Hae Na relentlessly seeks out Jin Seo Won for another kiss, only to find out he has a fear of dogs.