Isabella, daughter of the esteemed York lineage, attends a girls‑only academy designed to shape her into a noblewoman of grace. Yet she has abandoned hope for her destiny, viewing the revered institution as merely a cage that isolates her from the world beyond. Observing her faltering performance, her relatives decide to enlist Violet Evergarden as a personal tutor, disguised as a servant.
Initially, Isabella regards Violet with indifference. Violet appears flawless in every task, prompting Isabella to think she was born into privilege. Over time, Isabella recognizes that Violet has faced hardships of her own and begins to confide in her. She soon confesses that she has lost contact with her cherished younger sister, Taylor Bartlett, whom she longs to reunite with.
Drawing on the power of language from previous clients, Violet proposes that Isabella draft a letter to Taylor. Can Violet guide Isabella in expressing her emotions to the estranged sister? Through guidance, Violet hopes to help Isabella articulate the depth of her longing and bridge the years that have kept them apart.