Perhaps they are punishing the marisa...? If anyone can give a quick translation I would appreciate it. Silly Japanese, why can't they use english like normal people? It would save us all a lot of problems.
It starts with a anon with a summer cold going to a park on a hot day where yukkuris live. They know well enough to avoid bothering humans, and because of his cold, he rests at the bench, and a Chen does the same because of the wind providing coolness from the sun. She asks permission first though.
But after a while, she suddenly informs him that some uneasy yukkuri are coming, and advises him to leave if he wants to continue taking it easy before going off.
The anon isn't an abyuser, but he's no stranger to abuse (he only abyuses yukkuris who deserve it, referring to it as justice). As such, he hides to lie in wait for the uneasy yukkuri.
The family of four consist of a Great Marisa, a Reimu who thinks she should be given food of her beauty, a koMarisa who thinks she's strong, and a greedy koReimu. They plan to make the park their easy place, despite the clan gathering to stop them. Just before they make their move, anon steps in.
First he picks up the koReimu, who insults him and such, but what makes him snap is when she poos in his hand, and he crushes her.
The Marisa gets mad, but is distracted when he grabs her hat to wipe his hand on it, then is distressed further by the stink of koReimu's poo on it.
Next he picks up the koMarisa, who says she'll punish him for killing her little sister, and that she's the strongest easy yukkuri in the world. He slurs her words to annoy her, then lights her hat on fire with his cigarette lighter before putting her back down. She screams at the fire, then says she'll make it her slave, and that it should remember the voice of its master. But the fire has already burned her hat, and eventually consumes her too.
The Marisa is constantly taking off and putting on her hat, bothered by the smell of shit on it, then not having a hat, and on and on...
As for the Reimu that hasn't been punished yet, she asks why anon is doing such mean things when they haven't done anything, daring to approach him.
But because of his summer cold, he has difficulty focusing on multiple things and talks to the Marisa, asking if it can take it easy with the stinky hat. She responds that she can't, with orders to take away the smell, bring sweets, a beautiful yukkuri, then to kneel before her and die. Anon wonders how to do the last two things together.
In the end, he tells her he'll clean it, picking both yukkuri up by their braids and bringing them to the toilet. The Reimu makes a comment about him being a slave and becoming a pet yukkuri, to which the anon thinks to himself that if that was possible, all the scum would be pets.
Anyway, after he cleans the hat, the Marisa demands that he clean their body too. He comments about how it didn't say thanks, and kicks it twice, bouncing it off the wall the first time, and into the cubicle in the picture on the second. Then he tells her he'll clean it, and flushes. It takes three times before it takes it easy forever.
Reimu asks why anon does it, citing 'We're just living'. He responds by telling it about how they promised not to bother humans, but that if they had moved into the park, they would bother not only the yukkuri already there, but the humans as well, citing overpopulation and trashcan diving as examples.
Reimu claims that it wouldn't bother humans if they weren't around, to which anon counters that it already has, as their existence as trash are a bother to him. Then he crushes her just as she says she won't forgive him.
Exhausted after his exertion, he goes back to the same bench to rest, where Chen already is. He asks her to shift aside for him, and she does so, thanking him for his work earlier. She tells him how that family came from the forest a week ago, causing trouble for everyone. In the end, he asks her to become his pet, and after a bit of contemplation, she accepts, and they go to his home together, smiling.
Indeed, such a nice story and i'm glad the Chen got adopted.
Yet i can't help but notice a pattern, i think this is the 2nd story that states that city born yukkuris aren't as bad as the "newcomers" from the forest.