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.
Title: Best Mistake 1, Best Mistake Season 1, Bad Mistake, When You’re on the Blacklist of Bullies, Iljinege Jjikhyeosseulttae
Aired: Jul 25, 2019 – Sep 12, 2019
Genre: Comedy, Romance, Youth, Drama
Weekend: Tuesday, Thursday