Women from the Yarim family are full of lust.
Mitsuko’s mother and the second daughter of Saooko constantly bring different men to the house, while the head of the family is missing at home for months, and everyone who comes to visit them can have fun with the girls of this family as enough for the strength.
Mitsumi Kurumi, tries to be an exception in his family, but cannot resist his genes, and constantly on the platoon, which does not allow her to concentrate on her studies.
The most ingenious thing that could have occurred to her mother was to hire her handsome tutor "to pull her up to study ".
The mother’s plan was also a success in biology, while the tutor explained one of the options for breeding plants and animals by crossing, Mitsumi realizes that it is no longer able to resist his true "I ", and the genes take their own.
Pushing the tutor to move from theory to practice, clearly showing how people cross.
On this, complete sex and passion, the life of Mitsumi began.