A seventeen-year-old girl is forced to sign an agreement by her mother's creditor: on her eighteenth birthday, she must marry one of the creditor's two sons to clear a gambling debt. She moves into their home, transfers to an elite school, and finds herself caught between the two very different brothers—while facing cruel bullying from jealous classmates. The younger brother, once cold and hostile, begins to protect her after witnessing her humiliation. As tensions rise, the choice between them becomes impossible. Who will she choose in the end?
