Season 1 of Best Mistake premiered on July 25, 2019.

To get a boy from her past to leave her alone, Kim Yeon Do uploads a photo of a random guy claiming him to be her boyfriend. However, she does not realize the photo she chose was of bad boy student Ji Hyun Ho. When she ends up spending more time with him to make it up, she realizes that people have a lot more to them than what she sees.

Season 2 of Best Mistake premiered on March 31, 2020.

In the first season that played back in July, a model student named Kim Yeon-doo, who is devoted to her studies, got involved with Ji Hyeon-ho, who was branded as a bully, and went through stages of teenage romance, friendship and growth.

(Source: Han Cinema)

Season 3 of Best Mistake premiered on December 28, 2021.

The new season will take place in a college setting, showing the growth and romance of young people as they prepare to enter the real world.