Sister-in-law: A twisted envy and beautiful stepsister, a love-hate relationship created by her inferiority complex towards her elite younger brother. Onosaka Yuika YMDD-506

Being constantly compared to my younger brother by my family due to my poor performance, I felt suffocated by resentment. One day, while attending a housewarming celebration, I was deeply attracted to my brother's wife, Yuika, and couldn't resist forcibly assaulting her… Although she verbally protested her lack of interest, her vagina felt spasms, and I couldn't hold back any longer, ejaculating inside her. With my brother in the next room, I made her perform oral sex on me and used toys to discipline her. While expressing my feelings for her, she was gradually attracted to me because I was different from my brother and could express my love frankly, and began to actively crave me…