Blank tells the story of Khun Nueng (M.L. Sipakorn), a woman burdened by family expectations and unable to truly be herself. She's never met someone who felt right—until Anueng, a bright, free-spirited girl sixteen years her junior, changes everything. As their bond deepens, Nueng struggles with denial, eventually pushing Anueng away despite her feelings. But love isn't easy, especially when age, fear, and pressure stand in the way.