Yuzu, the little devil queen who blames masochistic men with an innocent smile, teaches masochistic men who want to be human urinals. As the first barrier to the toilet, feed Yuzu-sama the chewed food by mouth. Salad, pudding, cake... Of course, I also feed Yuzu-sama's saliva, snot, phlegm, and all the liquids that come out of her. The finishing touch is to use it as a urinal to drink pee.