

Best Mistake
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.
Cast

Lee Eun-jae
Kim Yeon Doo

Kang Yul
Ji Hyun Ho

Yoon Jun-won
Seo Joo Ho

Park E-hyun
Ryu Seol

Lee Jung-jun
Choi Seung Hyun

Choe Chan-yi
Jung Ji Sung

Joo Hyun-young
An Yoo Na

Yoon Hyun-suk
Kim Dae Young

Kim Won Pil
Do Ye Seok

Kang Hye-won
Jin Se Hee

Go Woo-jin
Heo Jin Soo

Lee Hyeong Seok
Baek Se Chan

Geum Dong-hyun
Kang Ah Hoon

Lee Sae-on
Woo Tae Kyung

Kang You-seok
Noh Shin Woo
Seasons
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.
E1When you're on the blacklist of bullies
Jul 25, 2019
Kim Yeon Doo is an ordinary high school student. But she has a stalker. To get rid of him, she uses a photo of some boy on the internet to pretend as if she has a boyfriend. But the next day, everyone in the school is staring at her, and Yeon Doo finds out that she's in trouble.
E2I will always buy your bread from now on!
Jul 30, 2019
Yeon Doo thinks hard to escape disaster and comes up with an idea. She goes up to Hyun Ho and offers to be his delivery girl that brings bread to him every day whenever he wants. And Hyun Ho accepts her offer. After school, Yeon Doo goes to a bar to get her sister's wallet and spots Ju Ho at the bar with intimidating friends.
E3You, me and…? Love triangle begins
Aug 1, 2019
Ju Ho tells Yeon Doo that he saw her green backpack yesterday at a bar. And he tells her what he was doing there but also asks her not to tell anyone. After Yeon Doo promises not to tell anyone, they become closer. The next day, Hyun Ho helps Yeon Doo not to get penalty points. As Yeon Doo put bread on Hyun Ho's desk, she complains about Hyun Ho to Ju Ho.
E4Two guys are fighting for me?
Aug 6, 2019
After Ju Ho shared his secret with Yeon Doo, they become very close. Other students start to talk about them and Hyun Ho is bothered to see them being close. As Hyun Ho acts weird to Ju Ho, Ju Ho asks Hyun Ho what is the matter when he's not really dating him. Seol doesn't like her friends being involved with Yeon Doo.
E5The past of the cool kid bullying me?
Aug 8, 2019
Yeon Doo's stalker forces her to go home with him but luckily, her friend Yu Na repels him. They run into Hyun Ho and he offers to take Yeon Doo home. Hyun Ho asks her relationship with Ju Ho but she tells him that they're only classmates. At school, Seol couldn't stand seeing her friends taking care of Yeon Doo and not her. She finally explodes.
E6Don't judge me by my looks
Aug 13, 2019
After what Yeon Doo heard from Seol, she can't stop thinking that she's fat. So she skips meals and eventually collapses. As she opens her eyes in the nurse's office, Ju Ho was sitting next to her. Ju Ho shows his drawings and tells a story about how Seol became who she is now.
E7School bully is looking for me
Aug 15, 2019
Jin Soo digs up information about Yeon Doo. Hyun Ho asks Yeon Doo to have tteokbokki with him after school. While Yeon Doo waits for Hyun Ho, she finds Baekmoon High School students at the gate looking for her. Yeon Doo and Ju Ho manage to escape the crisis with the help of Yu Na. Yeon Doo forgets about Hyun Ho and as she heads to her house, she meets Jin Soo.
E8My best friends left me
Aug 20, 2019
Yeon Doo keeps rejecting Jin Soo and tells him to go away, but Jin Soo won't go and threatens her. Luckily, Hyun Ho catches the scene and saves Yeon Doo. But Sae Chan ambushes Hyun Ho and Hyun Ho helplessly gets beat up. However, Sae Chan says he's done helping Jin Soo. And Yeon Doo decides to be Hyun Ho's right hand since he got hurt because of her.
E9Episode 9
Sep 22, 2019
Ju Ho leaves an umbrella in Yeon Doo's locker for her. But Seol takes away the umbrella and warns Yeon Doo to stay away. While Yeon Doo feels sad, Hyun Ho comes up to her and takes her home with his umbrella. Ju Ho recognizes his umbrella in the rain but it is Seol talking to Jin Soo who is holding the umbrella instead of Yeon Doo.
E10My first date with a bully
Aug 27, 2019
Dong Gu tells Ju Ho that it wasn't Seol who told Jin Soo about Yeon Doo's address. Ju Ho apologizes Seol and the two resolve their misunderstanding. Ju Ho asks Yeon Doo to watch a movie together, but she refuses. Instead, she makes a plan with Hyun Ho. Hyun Ho and Dong Gu become friends.
E11I thought dating would make me happy
Aug 29, 2019
Yeon Doo and Hyun Ho go to watch a movie together. Yeon Doo appears dressed up, and Hyun Ho teases her. Before the movie starts, they play a game, and the one who loses must grant a wish of the winner. Find out who gets to win and what kind of strange wish the winner makes.
E12When no one believes in me
Sep 3, 2019
Hyun Ho studies hard and gets a perfect score on the vocabulary test. However, the teacher suspects him of having cheated in the test, and he gets upset and leaves the classroom. Ju Ho follows Hyun Ho and tells him to go back to the classroom and give an explanation, and they get into a fight.
E13The man that likes me invited me over
Sep 5, 2019
The friends hold a birthday party for Yeon Doo. Ju Ho and Hyun Ho tell each other about their feelings for Yeon Doo. A subtle war of nerves happens between Ju Ho and Hyun Ho while Yeon Doo has no idea at all. Meanwhile, Ji sung writes someone's names on the paper.
E14Episode 14
Sep 10, 2019
Everyone is excited because of the festival. Hyun Ho, Ji Sung, and Ju Ho are all dressed up to scare people. Yeon Doo is the makeup artist for the day, but then some students come to Yeon Doo and say it's not fair that she's the only one who's not participating. And they lock Yeon Doo up on the third floor.
E15Going to tell her I like her
Sep 12, 2019
Hyun Ho finds out Yeon Doo who was trembling in the dark. And finally, Hyun Ho tells how he feels about her. Ju Ho sees them together and turns back with Seol. After Yeon Doo listens to Hyun Ho's sincere confession she decides to be together with Hyun Ho.
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)
E1Kim Yeondoo is... you?
Mar 31, 2020
E2A new student getting on my nerves
Apr 2, 2020
E3How to make your girlfriend more smitten
Apr 7, 2020
E4A celebratory party for that man
Apr 9, 2020
E5So it's you, my Wang Ing Ling?
Apr 14, 2020
E6An empty library, and us
Apr 16, 2020
E7A Person that Suits You
Apr 21, 2020
E8The Rumor of a Rumor of a Rumor
Apr 23, 2020
E9200 days without you
Apr 28, 2020
E10Where did we go wrong
Apr 30, 2020
E11I Will Be Responsible
May 5, 2020
E12I wish you would disappear
May 7, 2020
E13When My Heart Shakes
May 12, 2020
E14The day I decided to give up on you
May 14, 2020
E15Between Lies and Truth
May 19, 2020
E16Something Forever and Something Unchanging
May 21, 2020
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.
E1I’ve Never Met This Guy and He Keeps Following Me
Dec 28, 2021
Yeondu's a college student now, but this time, a guy in her department has his eyes on her?! And he keeps following Yeondu?
E2So You're Her Boyfriend?
Dec 30, 2021
Moments that remind us of our break-up Why did we break up in the first place?
E3Do You Believe in Destiny?
Jan 4, 2022
E4Bumping into My Ex After a Breakup
Jan 6, 2022
E5Why Did We Even Breakup?
Jan 11, 2022
E6I'll Put an End to Your Crush
Jan 13, 2022
E7When Two Guys Like You
Jan 18, 2022
E8It’s You That I’ve Been Waiting For
Jan 20, 2022
E9I Went on a Date With Two Guys
Jan 25, 2022
E10Someone Is Spying on Me
Jan 27, 2022
E11Being the Center of a Rumor
Feb 1, 2022
E12He Spent the Night Over at His Ex-girlfriend's
Feb 3, 2022
E13When You Feel Left Out of Your Friend Group
Feb 8, 2022
E14An Unexpected Love Confession
Feb 10, 2022
E15Reason Why We Broke Up
Feb 15, 2022
E16Can a Couple Get Back Together After a Breakup?
Feb 17, 2022
Videos
Storyline
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.
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