A man and a high school girl with huge tits who is (ostensibly) at his house to learn about agriculture spend an entire day indulging in each other before the man's wife comes home...! A 70 page monochrome manga.
Turns out that the two gals in my class that always tease me are actually succubi. One day, they call me to a secluded room and... thus began their perverted cumsqueezy domination of both my body... and my mind!
In order to boost the falling birth rate, every JK must attend school naked once a week. On those days, they may not refuse any sexual requests made of them.