Weightlifting Fairy, Kim Bok-joo

Kim Bok-joo meets a former childhood friend who teases her relentlessly, but despite their bickering, a spark of attraction ignites between them.

As Bok-joo and her fellow athletes prepare for a new school year and a new competition season, she realizes she knew Joon-hyung as a kid.

To get closer to Jae-yi, Bok-joo seeks to enroll in his weight-loss program but is discouraged by the clinic's prices.

After her encounter with Jae-yi at the clinic, Bok-joo begins to show a special interest in hair accessories.

Joon-hyung discovers Bok-joo's secret and takes advantage of it, while everyone finds it strange that she begins to accept being bullied.

Bok-joo finds out about Joon-hyung's trauma and the two grow closer, but she is desperate to find out that she will have to gain weight to compete.

When Bok-joo's secret visits to the weight loss clinic come to light, she gets in trouble in sports but also in her love life.

Bok-joo makes up a lie in order to stop going to Jae-yi's weight loss clinic. Meanwhile, Shi-ho hates seeing Bok-joo and Joon-hyung together.

Bok-joo is devastated but ends up revealing the truth to Jae-yi. Still, she pulls herself together and goes to the national competition.

Jae-yi disappoints Bok-joo by showing up at the national competition to cheer for her, unaware that she wouldn't want him to see her like this.

After the competition, Bok-joo takes a break from training and makes a surprising revelation to her father.

Bok-joo and Joon-hyung have a fun and very special time together at an amusement park.

Upon returning from her date with Joon-hyung, Bok-joo discovers Shi-ho unconscious, and the weightlifters call for the rehiring of their coach.

Bok-joo and Joon-hyung keep their relationship private, and Shi-ho returns to competition after her incident.

Joon-hyung discovers the real reasons for his mother's return to Korea and is heartbroken. Meanwhile, Bok-joo receives good news at the wrong time.

As the school year comes to an end, Bok-joo and her friends graduate and embark on new journeys, but she remains committed to Joon-hyung.