During his college entrance exam preparation, Taiichi ended up staying at his brother's house. He was captivated by his sister-in-law Sumire's slender body and ample buttocks, making it impossible for him to focus on his studies. One day, he accidentally caught her masturbating through a crack in the door. Having seen the entire act, Taiichi couldn't get the sight of Sumire's lewd bare ass out of his head. The next day, when he saw Sumire in the kitchen, he pounced on her driven by lust. Despite resisting Taiichi's rough thrusting, which her husband lacked, Sumire gradually succumbed…
