In a peaceful village in South Korea, a young orphan finds herself caught between the routine of her life and a world of hidden desire. Everything changes when a mysterious woman arrives at her home as the governess for the wealthy Japanese heiress who lives in a nearby mansion. As the governess teaches the young girl to read and write, their relationship grows intense and filled with secrets, revealing unexplored facets of their lives.
The woman, who appears to be kind and caring, is actually part of a cunning plan to steal the fortune of her young pupil. With a brilliant mind and shrewd vision, she seduces the girl not only with her knowledge but also with the power of love and betrayal that surrounds their hearts. Thus, a game of seduction unfolds, enveloping both in a spiral of lies and revelations.
As tensions between social classes and cultural expectations intensify, the protagonists confront their own implicit desires and the truth of their relationship. The atmosphere becomes charged with passion, and each decision they make leads them to a tragic fate. In a shocking twist, the masks fall away and the true objective of the governess is revealed, prompting the two women to question not only their love but also their struggle for freedom in a world that refuses to understand them.