The young heiress, once a naive virgin, underwent intense training after a chance encounter with a man at a summer resort, eventually losing all trace of him. Since then, she harbored her longing in silence—until she took the extreme step of uploading self-shot masochistic videos online in a desperate search for him. Her obsession deepens when a man claiming to be the twin brother appears, revealing himself as her stepfather, a greedy and beastly art professor. Mairi Mori delivers a stunning performance as the true-blue masochist heiress who submits to merciless hardcore play, becoming so immersed that the line between herself and her character blurs. This work, praised by fans for blending the character's delicate beauty with intense, brutal scenes, is recognized as her masterpiece and final performance before retirement.