ROYD-339 I got carried away and hugged my younger sister-in-law’s soft chest on impulse… I thought she would reject me, but she seemed reluctant to let go and kept teasing me affectionately. Before I knew it, we had become secret lovers as siblings. Ruka Itoi

Ruka, my cute stepsister from my parents’ remarriage, has an amazingly attractive figure that drives my teenage feelings wild. One day, I couldn’t hold back and made a move, but she rejected me, saying it was gross, and I was crushed. But the next day, things took an unexpected turn! I caught Ruka alone, looking reluctant to stop as she was touching herself in private. It turned out we had both been aware of each other all along, and before long, we crossed the line. When our parents went to a hot spring trip, we ended up becoming secret lovers. While studying, under the dining table, in the bath, and more, we started an exciting secret relationship full of thrill, always careful not to get caught by our parents. We’re not related by blood, so it’s okay, right?