Arisa, a younger sister-in-law with a sophisticated appearance and a friendly personality, is well-received by people outside of her family as well. - Ever since I was little, I've been compared to my older brother every time, and I've gotten tired of it. - That's what made me a proud wife, and that's why I get compared to her every day. - But I don't feel so bad this time. - Because my sister-in-law and I have a secret that our family doesn't know about. - I happened to see an affair between my sister-in-law and her brother. - Using that as a material, I was able to free my sister-in-law. - I have a sense of superiority over my older brother who is more talented, but recently I've realized that I'm better at sex than him. - Although my sister-in-law seemed to dislike it at first, I could tell that she was excited about my impregnating and training her. - Now, even though she doesn't like it, she sends me a masochistic look, and wants me to ooze her love juices and get fucked hard. - I will grab hold of her F cup, which doesn't suit her proud slender body, and show my brother how I train her freely. - Come on, sister-in-law. - I'll impregnate you and train you a lot today too.