Queen Iori's training of a human toilet is a brutal regimen designed to completely dominate the perverted masochistic cross-dresser Naru. The first step forces Naru to press his nose against Iori's anus, memorizing its scent. Then, crawling like a dog, Naru must carry an extremely thick dildo in his mouth and obediently insert it into his own ass—an act of unimaginable cruelty. The sheer girth of the dildo makes it difficult just to hold in his mouth, let alone penetrate his own rectum.
Naru must then use his tongue to thoroughly clean the dildo, removing every trace of filth in a strict test of obedience. Only when perfectly cleaned is he rewarded—allowed to face-sit on Iori's plump buttocks. As an act of twisted kindness, Iori even releases a fart directly onto Naru's face.
Next, Iori administers an enema to purge the waste packed inside Naru's intestines. During this process, Naru feels the urgent need to defecate and is wrapped in a cute pink diaper. As the pressure builds, his crotch swells visibly, and he's reduced to a pitiful state—wearing the soiled diaper, his face twisted in helpless shame.
The final stage of training now begins. Iori chews food thoroughly and performs mouth-to-mouth feeding, forcing Naru to swallow. After consuming large amounts, Iori regurgitates the partially digested contents straight into Naru's mouth. Devouring this vomit only intensifies Naru's arousal, paving the way for the next act: foreign object insertion into the anus. Iori stuffs his rectum with asparagus, sausages, and gummy candies, then makes Naru eat each item after removal.
Finally, Naru's throat is moistened with holy water as the ultimate moment approaches. An overwhelming mass of feces—too large to fit in his mouth—is shoved into Naru's face. He savors every bite, his cock throbbing with perverted ecstasy, completing this depraved transformation into a true sex slave.