Aki, a young married woman living in a luxurious white mansion, lacks nothing materially, yet her heart remains unfulfilled. Married off to repay her late father's debts, she finds her body desired but her soul untouched, day after day. Her life feels like a prison, monochrome and numb, as if hovering between life and death. Then one day, a young man appears. Drawn to him, Aki begins a passionate affair, surrendering to her instincts. For the first time, she discovers her true desires, pleasures, and a sense of security. But has she truly found freedom, or has a new conflict only just begun?