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.
You can now watch Best Mistake online on the following streaming providers in the United States.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Best Mistake | 2019-07-25 | 9 min |
| Season 1 | Episode 2 | Did I just see the class president in a bar? | 2019-07-30 | 9 min |
| Season 1 | Episode 3 | You, me and…? Love triangle begins | 2019-08-01 | 10 min |
| Season 1 | Episode 4 | Two guys are fighting for me? | 2019-08-06 | 11 min |
| Season 1 | Episode 5 | The past of the cool kid bullying me? | 2019-08-08 | 9 min |
| Season 1 | Episode 6 | Don't judge me by my looks | 2019-08-13 | 10 min |
| Season 1 | Episode 7 | School bully is looking for me | 2019-08-15 | 9 min |
| Season 1 | Episode 8 | My best friends left me | 2019-08-20 | 10 min |
| Season 1 | Episode 9 | My best friends left me | 2019-08-22 | 11 min |
| Season 1 | Episode 10 | My first date with a bully | 2019-08-27 | 11 min |
| Season 1 | Episode 11 | I thought dating would make me happy | 2019-08-29 | 12 min |
| Season 1 | Episode 12 | When no one believes in me | 2019-09-03 | 14 min |
| Season 1 | Episode 13 | The man that likes me invited me over | 2019-09-05 | 13 min |
| Season 1 | Episode 14 | Mom's surprise visit to Seoul | 2019-09-10 | 13 min |
| Season 1 | Episode 15 | Going to tell her I like her | 2019-09-12 | 11 min |
| Season 2 | Episode 1 | Kim Yun Doo is... you? | 2020-03-31 | 10 min |
| Season 2 | Episode 2 | A new student getting on my nerves | 2020-04-02 | 10 min |
| Season 2 | Episode 3 | How to make your girlfriend more smitten | 2020-04-07 | 10 min |
| Season 2 | Episode 4 | A celebratory party for that man | 2020-04-09 | 10 min |
| Season 2 | Episode 5 | So it's you, my Wang Ing Ling? | 2020-04-14 | 10 min |
| Season 2 | Episode 6 | An empty library, and us | 2020-04-16 | 10 min |
| Season 2 | Episode 7 | A Person that Suits You | 2020-04-21 | 10 min |
| Season 2 | Episode 8 | The Rumor of a Rumor of a Rumor | 2020-04-23 | 10 min |
| Season 2 | Episode 9 | 200 Days Without You | 2020-04-28 | 10 min |
| Season 2 | Episode 10 | Where did we go wrong | 2020-04-30 | 10 min |
| Season 2 | Episode 11 | I Will Be Responsible | 2020-05-05 | 10 min |
| Season 2 | Episode 12 | I wish you would disappear | 2020-05-07 | 10 min |
| Season 2 | Episode 13 | When My Heart Shakes | 2020-05-12 | 21 min |
| Season 2 | Episode 14 | The day I decided to give up on you | 2020-05-14 | 22 min |
| Season 2 | Episode 15 | Between Lies and Truth | 2020-05-19 | 19 min |
| Season 2 | Episode 16 | Something Forever and Something Unchanging | 2020-05-21 | 31 min |
| Season 3 | Episode 1 | Episode 1 | 2021-12-28 | 25 min |
| Season 3 | Episode 2 | Episode 2 | 2021-12-30 | 25 min |
| Season 3 | Episode 3 | Episode 3 | 2022-01-04 | 25 min |
| Season 3 | Episode 4 | Episode 4 | 2022-01-06 | 25 min |
| Season 3 | Episode 5 | Episode 5 | 2022-01-11 | 25 min |
| Season 3 | Episode 6 | Episode 6 | 2022-01-13 | 25 min |
| Season 3 | Episode 7 | Episode 7 | 2022-01-18 | 25 min |
| Season 3 | Episode 8 | Episode 8 | 2022-01-20 | 25 min |
| Season 3 | Episode 9 | Episode 9 | 2022-01-25 | 25 min |
| Season 3 | Episode 10 | Episode 10 | 2022-01-27 | 25 min |
| Season 3 | Episode 11 | Episode 11 | 2022-02-01 | 25 min |
| Season 3 | Episode 12 | Episode 12 | 2022-02-03 | 25 min |
| Season 3 | Episode 13 | Episode 13 | 2022-02-08 | 25 min |
| Season 3 | Episode 14 | Episode 14 | 2022-02-10 | 25 min |
| Season 3 | Episode 15 | Episode 15 | 2022-02-15 | 25 min |
| Season 3 | Episode 16 | Episode 16 | 2022-02-17 | 25 min |
| Directing | Lee Yoo Yeon | Director |
| Writing | Yoon Shi So | Writer |
| Sound | Yeonjung | Vocals |
| Sound | Seola | Vocals |
