Mistress Iori teaches a perverted masochist cross-dresser, Naru, as a human urinal. Start by placing your nose perfectly against Iori-sama's anus and memorizing the smell. Naru crawls on all fours like a dog and carries a very thick dildo in her mouth. Iori-sama inserts a dildo that is so thick that it is difficult to hold it in her mouth into Naru's asshole. Naru has to clean the dildo, which is brown and dirty with her own poop, with her own tongue... Naru's reward for cleaning the dildo is facesitting with her plump butt. What's more, Iori-sama even gave me a fart service. The kind Iori-sama gives an enema to Naru, which is filled with poop. A cute pink paper diaper is prepared for Naru when she has a bowel movement. As Naru's urge to defecate becomes stronger, Naru is placed in a diaper to cover his erect erection, and while Iori stares at him with his pathetic defecation face, Naru soils the diaper... It's finally the final stage of the human urinal education. First, Iori-sama gives chewed food to Naru by mouth. After eating a large amount of food, Eori vomits out the food that has been digested in her stomach and gives it to Naru. Receiving vomit makes your crotch hard. Next, Iori-sama puts Calpas, sausage, and gummies into her anus and feeds them to Naru. After quenching your thirst with holy water, it's time for gold. The amount of poop that couldn't fit in her mouth... Naru tasted it with increasing excitement.
