TACHIBANA-KYOBA: A very lucky sex with a beautiful, high-spec older brother's wife who is a low-spec virgin in a romance life.

Kenta Roju, who has been given the opportunity to take exams by her sister-in-law from a famous university. I was relieved that she was safe, but for Kenta who devoted youth to studying, her sister-in-law's beauty was too strong. A straight side face that smiles next to you, a soft body that sticks together, and a gap in the peeping chest. In addition to studying, my sister-in-law who noticed Kenta full of hard work because he suppressed the rumours came to me and said "I will teach you before studying ..." The first experience of a dream where beautiful and styled high school sister-in-law will give you a handpicked step-by-step lecture!