A young woman named Hikaru, who has just awakened to the joy of kisses, watches her older brother, a college student and their family tutor, passionately kiss another girl. As she witnesses his improving kissing techniques, Hikaru becomes increasingly aroused and desires such intimate experiences herself. She boldly approaches him and begs for a taste of that kind of love-filled exchange... but little does she know that her brother's lustful fire cannot be quenched by mere kisses alone! Their intense makeout session escalates into a heated incestuous encounter throughout the house, leaving both siblings breathless and covered in saliva as they explore each other's bodies with unbridled passion.
