The beautiful tutor who was slept with by her brother, I was the one who fell for BSS first - Hirose Yuri ADN-698

When I was in tutoring class, a beautiful tutor came to my house. I fell for her, but I couldn't bring myself to say it. My brother said, "Your tutor is so beautiful, I should go after her." I replied, "Whatever." My brother realized I liked her, and I regretted saying that.