J-cup, 105 centimeters of explosive milk mother, Mr. Shurei Shiratori. He lost his husband early, and lives with his son in a sluggish manner. One day, Juchorei is amazed to see his son's too large chick and meat stick. Recently, she has nothing to do with men and begins to recognize her son as a "male." and finally, the nanny and son of a big root... Unforgivable domestic mother and child sex, incest. His mother and son were forbidden to marry each other.