In a room of an old mansion, young Akane sits beside her mother. Before them lies a marriage meeting arranged to settle the debts left behind by her deceased father—an agreement with a wealthy heir. The man, rumored to have no interest in women, is a 40-year-old who treats the situation like a game, callously toying with and degrading Akane day after day. Yet within Akane's heart, something long dormant begins to slowly awaken. In the quiet confines of the estate, her inner turmoil and the emerging, unfamiliar emotions gradually deepen.