Season
- Season 3 2021-12-28
- Season 2 2020-03-31
- Season 1 2019-07-25
Episode
- Episode 1: I’ve Never Met This Guy and He Keeps Following Me
- Episode 2: So You're Her Boyfriend?
- Episode 3: Do You Believe in Destiny?
- Episode 4: Bumping into My Ex After a Breakup
- Episode 5: Why Did We Even Breakup?
- Episode 6: I'll Put an End to Your Crush
- Episode 7: When Two Guys Like You
- Episode 8: It’s You That I’ve Been Waiting For
- Episode 9: I Went on a Date With Two Guys
- Episode 10: Someone Is Spying on Me
- Episode 11: Being the Center of a Rumor
- Episode 12: He Spent the Night Over at His Ex-girlfriend's
- Episode 13: When You Feel Left Out of Your Friend Group
- Episode 14: An Unexpected Love Confession
- Episode 15: Reason Why We Broke Up
- Episode 16: Can a Couple Get Back Together After a Breakup?
Best Mistake Season 3 Why Did We Even Breakup?
The story focuses on Yun Doo, a studious, normal girl. An old partner won't stop bothering her through messages, so she makes up that she has a boyfriend and posts a random photo of a guy. That picture turns out to be from Hyun Ho, one of the most popular and rebellious of the school. It's a school drama, with several romances in sight.
