Suddenly appearing due to my parent's remarriage, my new stepsister Ichika. Living with her, despite no blood relation, began stirring emotions deep within me. She was cute, undeniably attractive in every way. Then one day, with our parents away, we found ourselves completely alone together. With lust building stronger than ever, our bodies moved instinctively, without a single word spoken. I realized she was feeling it too—aware, drawn in just as I was. Without exchanging a single sentence, our unspoken tension sparked an intense connection. Thus began our forbidden relationship: locking eyes, we'd silently fuck like wild animals. This impulsive, taboo passion forged an even deeper bond between us.