Do Min-Ik is a brilliant, demanding executive with an uncanny ability to read people—until a violent attack leaves him with prosopagnosia, making him unable to recognize even the faces of those closest to him. In his disorienting new reality, the only person he can identify is his overlooked secretary, Jung Gale-Hee. Long treated as invisible by her colleagues, Gal-Hee suddenly becomes indispensable. But when a makeover leads Min-Ik to mistake her for the glamorous heiress Veronica Park, she is swept into an unexpected double life. Torn between being his dependable secretary and the confident woman he believes she's to be, Gal-Hee begins to discover a version of herself she's always longed to become. When the real Veronica uncovers the deception, she chooses to play along for reasons of her own—while finding herself drawn to Min-Ik's charismatic best friend, Ki Dae-Joo. As mistaken identities, hidden truths, and unexpected romances collide, four lives become entangled in a heartfelt tale of love, ambition, and discovering that true connection goes far beyond appearances.