A bitterly cold rainy day... a night of passionate kissing and ejaculation with my busty tutor, seeking warmth from each other. (Natsuki Riki PRED-312)

My tutor, who was terrible at academics, was a beautiful and elegant older sister who gradually won me over... One day, it started raining heavily outside, and since my sister couldn't go home, the two of us spent the night alone at home...