Nice Dream, Godly Feel
There's many cases where nice pet yukkuri turn into scum because their owner spoiled them too much. Yukkuri by nature are easy to forget bad things and only keep their good memories.
In this case it usually ends up with the owner beating that yukkuri, send it to the Factory, or both.
But this scum-ification process also happened in the wild.
Marisa woke up and found the whole clan bow in front of her, even the chief. They all regards Marisa as god and also present human slaves.
Marisa has seen yukkuri getting killed by human because their attitude, so she know to respect these humans. But amazingly, all the human gladly become Marisa's slave. She's their god.
After a while, Marisa lost it. Living a pampered life as god, Marisa turns into an arrogant dictator, executing everyone she doesn't like on a whim.
She also enjoyed watching how the clan all went in a frenzy to get their hand on her poo poo like it's a divine object.
Marisa's wife, a Deibu, woke her up rudely. The sun is already high, but for yukkuri this is still early in the morning. Marisa is shitting in her sleep and that's disgusting.
Usually, Marisa can't stand up against her Deibu wife and two daughters, but today is different. She's a god and she quickly attack Deibu and almost crushed her own children.
Deibu's scream when Marisa stabbed her numerous times with branch called the other clan members. They know the Deibu, but Marisa attacking her is also a scum and the clan proceed to punish her.
That's when a human came. He's a light abyuser that often came to the park. He and the yukkuri know each others, so the clan feared him.
Out of curiosity, he asked the clan what happened.
Marisa used to be a good yukkuri, despite married to a Deibu. But suddenly, she turned into a scum.
The human is interested. He's curious about how a yukkuri suddenly turn into scum because the process itself is still a mistery.
After hearing more details, he made a theory.
Yukkuri likes to take it easy. He knew well that yukkuri imagine and dream of good things for them; after all, it's their only relief from this hardship in life, a temporary escape from reality.
Marisa is obviously having those dreams because of her uneasy life as Deibu's husband.
This is not a problem, after all, every yukkuri did it and they don't just turn into scum. They can still see through dream and reality.
Problem is, Marisa did poo poo in her dream.
Poo poo is yukkuri's mechanism of removing bad memories. Marisa accepted her dream as reality and excreted her uneasy memories which is the reality. When she's forcefully awakened, she can't get a grasp of reality and still living in her own dream.
Patchouli and the clan is shocked. Dreaming is their only escape from hardship. But that dreaming can turn them into uneasy scum ?
The human told them not to worry too much, after all, this is a rare case.
The human also hanged Marisa to a tree, a method often used by farmers to warn yukkuri from going against human. Marisa is still struggling, but no other yukkuri can reach to free or kill her.
The human leaves the park and go back home, leaving the yukkuri feeling uneasy because of Marisa's struggling and angry screaming as well as the realization that their dream can turn them into like this Marisa.