Given full reign over May's husband, Kristina takes to her role as 'girl trainer' with delight. Suddenly, Akira finds himself in a state of transformation under not one but two dominant women. Meanwhile, May herself begins to explore her newfound freedom, while at the same time continuing to restrict and deprive her enslaved husband.
Under May's Rule Part 4: A Story of Femdom, Cuckolding, and Feminization by Nicole Diamond Kristina adds rules to the list and the direction takes on new dimensions while entering light S&M.