
8.5
A competitive swimmer crosses paths with his childhood friend, a rising weight lifting star, and realizes that she has a secret crush on his cousin.
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1Episode 1What Do We Do About the People We Hate?
61 min
One day Bok-joo, the star of the weightlifting club at her sports university, runs into Joon-hyung, a swimmer who is weak under pressure.
2Episode 2When I Fall in Love With You
60 min
After Joon-hyung saves Bok-joo when she falls into the pool, they realize they were friends in childhood. Joon-hyung comments on Bok-joo's weight.
3Episode 3Let It Go
59 min
Bok-joo visits Jae-yi's weight loss clinic but worries about the price. She then hears about a mountain climbing contest with a big prize.
4Episode 4Her Double Life
59 min
Bok-joo pays the clinic fees and gets an examination, but is warned not to overdo it. Bok-joo wants to thank Jae-yi for lending her his umbrella.
5Episode 5I'm Happy Because I'm a Woman
59 min
Joon-hyung runs into Bok-joo when he visits Jae-yi at the clinic. Bok-joo hides the truth from Jae-yi and explains that they are just old classmates.
6Episode 6Long Tails Either Get Caught or Get Stepped on
63 min
Bok-joo is delighted to get a ride from Jae-yi after the concert. While Joon-hyung is in counseling he recalls an incident from his childhood.
7Episode 7Happy Birthday To
60 min
Bok-joo's coach and manager find out she is going to a weight loss clinic and tell her father, who is furious. Bok-joo tries to apologize.
8Episode 8The Wind is Blowing
61 min
Shi-ho snatches Bok-joo's phone away while she is speaking with Joon-hyung. Bok-joo sleeps in a different room after finding out about the diary.
9Episode 9The Merits of a Secret Crush
60 min
Jae-yi sees Bok-joo while he is at the university. Joon-hyung tries to cover for her, but Bok-joo confesses to Jae-yi that she is a weightlifter.
10Episode 10A Comma or a Period
60 min
Joon-hyung criticizes Jae-yi after he shows up at a weightlifting competition to cheer Bok-joo on, not knowing she doesn't want to be seen like that.
11Episode 11It's the End, It's Not the End
59 min
After Bok-joo's disappearance in the aftermath of Coach Choi's firing, she shows up and tells her father she wants to quit weightlifting.
12Episode 12Her Bucket List
59 min
Bok-joo is taken aback at the sight of Shi-ho stuffing her face but keeps it from Joon-hyung. Joon-hyung invites Bok-joo to an amusement park.
13Episode 13Round off Love, and It Becomes Jealousy
59 min
Joon-hyung and Bok-joo are now a couple after letting each other know how they feel. Joon-hyung doesn't notice a call from Shi-ho.
14Episode 14This Girl Is Mine
62 min
Love is in the air as another secret relationship comes out into the open. Bok-joo is nervous after Nan-hee's stern warning to her friends.
15Episode 15That's How You Become an Adult
62 min
Joon-hyung is reunited with his mother. The next day he goes back home to retrieve some childhood photos and overhears something that shocks him.
16Episode 16Spring, Youth and Us Again
59 min
Joon-hyung goes to the hospital to see Chang-gul, who asks him to hide the operation from Bok-joo so she can focus on her training.

Lee Sung-kyung
Kim Bok-joo

Nam Joo-hyuk
Jung Joon-hyung

Lee Jae-yoon
Jung Jae-yi

Kyung Soo-jin
Song Shi-ho

Choi Woong
Kim Ki-seok

Ji Il-ju
Tae-kwon

Cho Soo-hyang
Soo-bin

Cho Hye-jeong
Jung Nan-hee

Oh Eui-sik
Bang Woon-ki

Lee Joo-young
Lee Sun-ok

Choi Mu-sung
Yoon Duk-man

Jang Young-nam
Choi Sung-eun
7.6