Sister-in-law: A twisted envy and a beautiful stepsister, a desire for her elite younger brother born from her inferiority complex, a story of immoral love. Onosaka Yuika YMDS-311

My poor performance and constant comparisons to my younger brother led to my family's disdain and suppressed resentment. One day, at a housewarming celebration, I was deeply attracted to my sister-in-law, Yuika, and even forcibly used toys to "discipline" her. While expressing my feelings to her, she was gradually drawn to me, who was different from my brother and could openly express her love. Soon after, she began to actively desire me, and we greedily took from each other amidst our sweaty passion…