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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The complexity of the case deepens as Hae-jun and Yoon-young investigate, causing confusion to mount.

The winning team of the arena battle reap their reward of a 30-minute shield. But the other teams waste no time in coordinating their next attack.

The teams spring into action as an abrupt siren signals the next base battle. The surviving teams face another arena battle — a true test of strength.

Six groups of professional women enter the island and begin their challenge — traversing a mudflat course and preparing for their first base battle.

The first base battle begins. The teams embark on their raid, employing wit and a strategic alliance to avoid being the first one eliminated.

The first base battle ends — and a team leaves. The remaining teams plan their next move before competing in an arena battle for a valuable leg up.