What type of equipment does she like? Do-yeong is jobless after graduating faculty of education but has a job as a trainer at the gymnasium. There, he meets Se-hee, a stunning and famous sporting caster who lives in his neighborhood. He tries to purchase her attention but fails times. Meanwhile, Do-yeong discovers that the gymnasium is planning a way and he sets out to save her. What exactly is going on at the gymnasium throughout the 1:1 sessions and what is the plot behind it?