Hyo-sim's competence leads to a promotion to team leader at TS Fitness; her mom calls and it signifies trouble; Tae-ho, who's been studying abroad in the U.S., decides to return home to investigate the whereabouts of his grandmother.

At TS Fitness Hyo-sim is surprised when a new member, who seems recognizable, tries to access the gym; Tae-min finishes his prison sentence and faces a mob of reporters inquiring about his future at Taesan Group; Hyo-sim receives a phone call.

Myung-hee manages to escape from her captors, causing Sook-hyang to feel alarmed; Sook-hyang is troubled by the possibility that Tae-ho might uncover what really happened to his grandmother; Hyo-sim introduces herself as Tae-ho's personal trainer.

Hyo-do finds himself in a car accident, colliding with Myung-hee; Myung-hee refuses hospitalization, so Hyo-do brings her to Uicheon Villa; Tae-min assigns a project to Tae-ho; Tae-min is pushed into an arranged marriage; Hyo-sim runs into Tae-min.

Hyo-sim and the Taesan Group heirs cross paths unexpectedly at TS Fitness; Kkeut-soon comes face-to-face with Myung-hee; following Myung-hee's collapse, she is rushed to the hospital, prompting an urgent call to Hyo-sim.

Tae-ho finds himself getting hurt at the gym while resisting Hyo-sim's training; Sun-soon pressures Hyo-sim to kick Myung-hee out of her house; men associated with the loan shark give Hyo-do a beating; Hyo-sim gets involved with the loan shark.