Junho arrives at Lezhin Univ. with big dreams, entering the fiercely competitive Sports Sciences department. Surrounded by ambition, desire, and constant rivalry, he struggles to find his footing while chasing success, navigating temptation, and learning what it truly means to grow up.

Caleb, a college football player, returns home for the holidays with a shoulder injury and seeks therapy from his stepmom, Lisa, a physical therapist. As Lisa treats him, their dynamic shifts—Caleb struggles with forbidden desire, while Lisa fights her own growing attraction. Tension escalates when Lisa’s assistant, Cheryl, joins the sessions, pushing Caleb into a conflict between guilt, passion, and the consequences of crossing the line.