VEC-747 Mother's best friend Haruka Nagasawa

I never thought I'd be alone with such a beautiful person... While my parents are away on a trip, my mom's best friend Haruka is going to take care of me. Just being looked at makes my crotch swell up. If I could actually do it with such a pretty woman... Koji can't stop fantasizing. On the other hand, Haruka finds Kazuhiro cute and repeatedly kisses him as a prank, saying, 'How about I do something special that feels really good?' while seducing him.