I've read this and had it on my to-do list. It's called "Dreaming Reimu and Mister Cash."
Reimu and her Reimu-type children approach drunk Mister trying to pimp out her raper's-child Alice to abuse or refresh with. He refuses--he's a gentleman, not an abuser or a yukkuri pedophile. He also points out that if they want to sell Alice, they ought to describe her as attractive and appealing, not worthless scum. With "attractive and appealing" in mind, Reimu decides that Mister must want _her_ and gives him a special bottom-wiggling-and-mamumamu show for him to jerk off to. Pissed off, Mister kicks her in the privates (leaving a big crater). Throughout all this, the baby Alice has shown herself to be very good and docile, so Mister decides to buy her after all and gives Reimu 1000 yen ($10+) for her. Reimu is ecstatic to receive mister cash, and Mister convinces Alice that she'll be better off with him.
As Explosion said, some time later, Reimu and her children go into a well-regarded patisserie to use their money. A horrified employee whisks the filthy yukkuris away from the disgusted customers. He inadvertently rips off one child's sidelock, and Reimu demands apologies and reparations. Instead, he steps on the other child. Reimu is shocked that mister cash doesn't give her omnipotent power over humans. Just then, a second employee arrives for work, and the first employee asks him to go throw away the yukkuris in the park--since the first employee is wearing the shop's uniform, it would damage the shop's image anyone saw him doing it. And he doesn't want to crush them then and there because he doesn't want to make any more of a mess. [So why did he step on one of the children?] They stuff the remaining little one into Reimu's mouth--breaking some of Reimu's teeth in the process--so the little one doesn't burst on impact and make more of a mess. After rejecting the notion that Reimu could've earned the money by singing on the street, they figure someone must have dropped it and decide to turn it over to the police lost and found.
Reimu and her little one are tossed into the park.
Pained and stunned, Reimu thinks back to her own mother, who told her that mister cash was a very easy thing that humans were powerless against and that could let them take it easy. Every day, Reimu's mother sang on busy sidewalks in hopes of earning some mister cash, but she never got any. Eventually, Reimu's mother was killed by an annoyed passerby, so although Reimu carried on her belief that mister cash would let her take it easy if she could just get some, she figured it was no use trying to sing for it. She actually saw some mister cash for the first time when a friend showed her they money she picked up, but her friend was promptly crushed by the human who had dropped the money. Reimu learned that you can't just pick up fallen money.
Reimu was so happy when she properly earned some cash by selling her baby Alice, but it brought her nothing but trouble. She feels betrayed by her mother's teachings. To make matters worse, when she landed in the park, she accidentally bit down on the little one in her mouth, and now her little one is wounded.
Just then, the Mister from the beginning walks by. Reimu yells at him that the money didn't let her take it easy. He says he's not surprised, and explains that money is a tool for humans, by humans. He just gave her the money because he felt it was a fair business transaction.
He starts to leave, and Reimu begs him to help her, not to leave her like that. Mister says that it's his day off and he's going to spend it eating cake (in the box he's carrying) with Alice. Reimu calls him and Alice stupid scum and demands the cake, but he just brushes her off with a sarcastic "Yes, yes, I'm too stupid understand what clever Reimu is saying, so I'm leaving now."
Reimu desperately changes tactics and apologizes and begs him to at least save her dying little one. Mister says he'll help if she pays him in cash. She offers to sell him her cute little one, but Mister says she and her little one are worthless scum. In contrast, since she was always bullied by her family, his pet Alice can behave herself, and sit quietly, and do as Mister says--at a pet shop, such a well-trained yukkuri would be worth $700-800.
As Reimu sadly mutters about mister cash and her dying little one, Mister proposes another transaction--he'll give her money in exchange for something of hers. She eagerly agrees, so he rips off her ribbon and gives her 1 yen (a penny), saying that's all it's worth. He says Reimu will need about a hundred more of those to save her little one.
Mister says Alice is a good, thoughtful child who has been worrying about her family, so he's going to tell her he found them dead in the park and give her Reimu's ribbon as a memento. He'll tell Alice that she was lucky to escape their fate, so she should try to live a good, happy life for their sake. Mister walks away laughing.
Reimu thinks about the yukkuris whose lives were ruined by mister cash--her mother, her friend Marisa, herself. But her injured little one is still alive, so she vows to save her. Reimu does lick-lick to her little one until she falls asleep, exhausted. The next morning, the first thing the filthy, wounded, accessory-less Reimu sees are the deflated, blackened remains of her little one.
I'm glad that, this time, it wasn't a nice hard working yukkuri with a mistaken idea of money the one facing the aesop.
Instead it was a scum that got what she deserved, meanwhile the nice Alice got a nice owner.
Yet in the end, Reimu blames the mister money for hers and other yu's misfortunes related to it, when it's actually their fault, not the money's, if they are too stupid to not understand it and realize it's only useful for humans, it's only their fault, even more if they expect to treat others like slaves with it.