Lena Santiago conducts a strict, no-nonsense English class in sunny Cebu until Jihon Park arrives. A well-known Korean actor evading a scandal at home, Jihon 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 Jihon’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, Jihon 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?