Lena Santiago conducts a strict, no-nonsense English class in sunny Cebu until Jinho Park arrives. A well-known Korean actor evading a scandal at home, Jinho is strikingly handsome, full of arrogance, and seemingly resistant to doing homework. Each lesson transforms into a battle: her grammar exercises against his sharp-witted retorts. However, behind Jinho’s confident smile lies a man grappling with past hurts, and beneath Lena’s professional exterior is a heart she has carefully shielded. Amidst vocabulary drills, coffee breaks, and unexpected revelations, chemistry starts to ignite in ways that no textbook could anticipate. As Lena instructs him in English, Jinho imparts lessons in patience, bravery, and allowing love to enter her life. Yet, when the real world intrudes, will their relationship withstand the ultimate challenge?