Due to her father's circumstances, black gyaru Yukina moves in with her grandfather. In contrast to her strict father, Yukina finds herself drawn to her kind and warm grandfather. One day, she discovers an unexpected adult video in his room, and from that moment, her life changes completely. Feelings of compassion toward her grandfather and empathy for the lonely elderly man begin to stir within her, forcing Yukina to reevaluate her own emotions. Expect an intense episode blending desire and emotion, as a genuine old man and a black gyaru become intimately entangled.