For twenty-three years, Saint Evelyn has protected her kingdom with powerful healing magic, earning the love and devotion of its people. At twenty-eight years old, she has served faithfully as the nation's spiritual pillar and has been engaged to the first prince. That life shatters in a single breath when the prince abruptly breaks off their engagement, strips her of her saintly title, and banishes her from the royal court. In her place, he names her incompetent younger half-sister as the new saint, a woman who possesses none of Evelyn's abilities or dedication.

Cast out from the only existence she has ever known, the sheltered and naive Evelyn finds herself wandering the streets with no money, no practical skills beyond her magic, and no understanding of how the ordinary world functions. Having been kept from anything that might taint her since childhood, she is utterly unprepared for life outside the palace. Desperate and alone, she encounters a streetwise young boy named Kira, who recognizes an opportunity and offers to help her make a living. Together, they begin a small enterprise where Evelyn uses her healing magic to treat ailments in exchange for payment, a humble start that quickly draws attention.

Her first significant commission comes when she heals a powerful nobleman, a handsome count who is so impressed by her abilities and character that he proposes to her almost immediately. As Evelyn navigates this sudden turn toward romance and a new life, she remains blissfully unaware of the chaos brewing elsewhere. Without her prayers and healing magic sustaining the kingdom, the royal family finds itself in disarray. The incompetent half-sister cannot perform the duties of a saint, and discontent grows over the first prince's foolish decision to exile the woman who was truly beloved.

What Evelyn does not realize, and what no one bothered to tell her, is that the people adore her beyond measure. She has spent her entire adult life protecting them, and they have not forgotten. Adoring fans flock to her side wherever she goes, and in one memorable town, she discovers that so many families named their children after her that there are fifty-seven Evelyns living there. The kingdom begins to crumble without her influence, and those who exiled her come to regret their folly as the consequences of their actions ripple outward.

The narrative follows Evelyn as she must navigate political intrigue stemming from her illegal exile, her newly realized fame as a beloved public figure, and the unexpected romantic attention she receives from the count. Throughout it all, she remains genuinely kind-hearted but also comically oblivious to just how much everyone adores her, frequently lamenting that she is too old to marry at twenty-eight while suitors line up for her attention. As the royal family's mistakes compound and the kingdom's situation worsens, Evelyn finds herself building a new life surrounded by weird and wonderful friends who appreciate her for who she truly is.