It was a mistake made one summer... Five years ago, Michiko came into our home as my father's new wife. At first, our interactions were awkward, but gradually, touched by her devoted kindness, we naturally settled into a family bond. Then one day, my younger brother Tetsuya told me something unbelievable: "I... I ended up doing perverted things with Mom... she seduced me." Hearing those words, I began seeing Michiko not as a mother figure, but as a woman. And soon, I noticed her casting strange, lingering glances in my direction too...