This tale delves into the forbidden, with elements of angst and taboo as it unfolds the story of forbidden fruit. Following a tumultuous breakup, nineteen-year-old Kasumi sets off to Italy, where she encounters a captivating Japanese man. Despite not knowing who he is, she engages in a passionate liaison with him. Her return to Japan, however, reveals that the stranger she had spent the night with was none other than her younger brother Yoshiki. Little did Kasumi know that this was just the start of her troubles.