For the sake of a mission, Gudao needs to crossdress for disguise. But Jeanne Alter and Saber Alter feel like he’s not feminine enough for the role. And so they decide to use their massive cocks to turn him into a little bitch. Purely for the sake of the mission, of course.
I enjoyed the character designs more with this one compared to some of the other Aimaitei Umami doujins, but some of the scenes it was hard to see what was going on during the action.