Season 1

A misunderstood loner is drawn out of his shell after transferring to another high school, where he comes across new ordeals -- and first love.

1. 

   1. The Nameless Kid, Choe Jun-u

   2019-07-22 · 68m

   Not long after arriving at a new high school, where he's shown around by star student Ma Hwi-yeong, Choe Jun-u faces an unfair accusation.

2. 

   2. A Moment I Want to Run Away

   2019-07-23 · 64m

   Jun-u prepares to transfer schools again. Yu Su-bin doesn't believe Jun-u took the watch. Hwi-yeong won't own up to what he did.

3. 

   3. It Always Rains on a Sad Day

   2019-07-29 · 67m

   Jun-u beats out Hwi-yeong to pair up with Su-bin for a class assignment, and receives an urgent call about an old friend.

4. 

   4. Happiness and Sadness Come and Go Instantly

   2019-07-30 · 66m

   Su-bin and Jun-u continue practicing their English for the upcoming evaluation. Sin Jeong-hu writes a letter, and makes a heartfelt apology.

5. 

   5. After that Long and Sad Day

   2019-08-05 · 67m

   Jun-u's outburst of rage panics Hwi-yeong, who has something to cover up. O Han-kyeol visits someone who can testify to the truth.

6. 

   6. The Timing of Action and Reaction

   2019-08-06 · 64m

   Fighting with her mother, Su-bin doesn't go home. Determined to reveal Hwi-yeong's true nature, Jun-u starts to gain insight into his behavior.

7. 

   7. Romeo and Juliet

   2019-08-12 · 61m

   Su-bin and Jun-u can't stop thinking about each other -- but don't know what to do about it. Hwi-yeong agonizes over one wrong answer on a math test.

8. 

   8. The Moment of Your First Love

   2019-08-13 · 62m

   Even as Su-bin learns she's not the only one who likes Jun-u, she's excited for their first date. Jo Sang-hun goes up against Hwi-yeong's parents.

9. 

   9. I'm Sorry

   2019-08-19 · 67m

   Hwi-yeong sends Su-bin something that cuts her date with Jun-u short. Han-kyeol turns away a bribe. Yun Song-hui searches for a driver.

10. 

    10. The Night That Will Never Return

    2019-08-20 · 58m

    When the class goes on a trip together, the students bring with them a tangled mess of relationship and personal dramas.

11. 

    11. The Emotions That I Got to Know Through You

    2019-08-26 · 62m

    Han-kyeol deals with a petition to replace him. Hwi-yeong removes Su-bin from the tutor group, which bothers Song-hui more than it does her.

12. 

    12. Being More Mature Than Adults at the Age of 18

    2019-08-27 · 64m

    A rumor about Hwi-yeong's grades being rigged spreads like wildfire. Su-bin hesitates to tell Song-hui something, and meets with her father.

13. 

    13. I Should Still Like You

    2019-09-02 · 68m

    Finals approach, Song-hui's disapproval forces Su-bin and Jun-u apart, and Han-kyeol tracks down Hwi-yeong's old teacher.

14. 

    14. Happy Birthday to You

    2019-09-03 · 63m

    Everyone worries when the rumor about Hwi-yeong gets him into real trouble. Jun-u tells Han-kyeol about his newfound goal.

15. 

    15. Ways to Embrace Your Scar

    2019-09-09 · 66m

    Song-hui remains stubborn about Su-bin and Jun-u, who enters an art academy. The school board investigates Hwi-yeong's case.

16. 

    16. This Goodbye Isn't Forever

    2019-09-10 · 66m

    Hwi-yeong makes peace with the others -- and himself. Jun-u realizes his mother's situation, and must break difficult news to Su-bin.