In Futaba City, there's a park made by yukkuri lovers. This park is inhabited by yukkuri who can use it as their easy place. Human take care of the park and give them food.
The yukkuri are satisfied with this and doesn't pester the human at all.
With too much free time, the yukkuri doesn't simply take it easy. They gathered and shared their thoughts. Politic is born.
They started sports competition, court trials, building bigger home, exiling troublemakers or political enemies. The basic policy is made around the idea to build good relationship with human.
Unfortunately, while you could say they have evolved closer to human, you can also say they have devolved closer to human.
Human's ancient democracy has downplayed this problem and it's repeated in the yukkuri. The fact is, many yukkuri don't care about politics. In the end, final decisions are made by a group calling themselves the "sage". These sage are not exactly as wise as they called themselves to be, but to the yukkuri who never look for truth in their free time, they swallow all the sage's words.
The sage called to the crowd. Human works for yukkuri, so they are slave. Is there any need to bow down to slave ?
The crowds swallow the idea as it is and agreed.
Among them, only one yukkuri who desired truth, desired the answer to her questions.
This is an area built by human for yukkuri. Cardboard house lined up and yukkuri just laze off in them.
One yukkuri is different. Marisa run in between the houses, ignoring the stupid faced inhabitants and looking for just one, her master Chen.
She found Chen sitting on top of the jungle gym outside the "city". Most yukkuri would be hurt and fall down, but Marisa is athletic and can climb up to the top and saw her master, an old Chen.
Marisa asked, why her master is looking far away.
Chen asked back, why is she so small. That's a new question. Chen told Marisa, Mister Human is so big, yet they don't know everything about the universe.
Marisa told her master, only God can know everything. Even so, Chen wants to know.
Marisa then asked again, why does her master look to the distance. Chen answered, it's because she want to know about the world.
That aside, there's something more important. Patchouli is making another speech. Marisa hoped for her master to shut Patchouli.
Recently there's a boom of sage making criticism about human. This is called the Human Slave Theory.
These are mostly the third generation yukkuri who feel no gratefulness towards human.
The first and second generation had experienced starvation, so they are very grateful to the help human has given them. Young yukkuri of good upbringing also understand this relationship, but sadly 70% never comprehend the relationship between yukkuri and human that their predecessors had started.
Chen is reluctant, her wife Deibu will surely get mad. It's not a rare thing for her to get scolded by her wife.
In contrary, Marisa came from a good family. Her father is a good politician with strong social position. Marisa suggested that she can ask her father's help so Chen can set a divorce.
Chen refused the offer. She believed that divorce is a bad thing. It's her own principle. She has swore her love, so she will never renounce it. Renouncing what she has said would be bending truth, something Chen rather die than do.
Marisa still can't understand why truth must not be bended.
Back to Patchouli, she's an average "sage", so there's many audience to hear her words. The audience just wanted pleasure, so what the sage say could be either medicine or poison.
When seeing Chen coming, the crowd became uneasy. That Chen with her quibbles.
Marisa is used to this. She's ready for a good fight.
Chen stopped Marisa, they're not coming for a fight.
Thus, Patchouli started her speech about how human are uneasy. Hearing this, most of the audience believed and starts to have their own image of human.
But another part of the audience are waiting. They are waiting for Chen and Marisa's turn to speak.
After Patchouli finished her oration, Chen raise her voice.
Chen: So, you mean human are stupid ?
Patche: Of course. Human always repeat the same thing. Greeting, cleaning, hunting.
Chen: That's merely a small part of human's abilities.
Patche: But human are tools to let yukkuri take it easy.
Chen: Or maybe they are like father and mother for us.
Patche: So you're saying humans are our parents? Mukyakyakya
Chen: No, I mean, they could be gods
Patche: Mukyakyakyakya! No way that can be true!
Chen: So, why did human do so much for yukkuri ?
Patche: Of course, because yukkuri are easy
Chen: So, why are yukkuri easy ?
Patche: Because... yukkuri are yukkuri
Chen: That's not an answer
The crowd is getting restless.
Patche: Then, why do Chen think yukkuri are easy ?
Chen: Not really. Chen doesn't think that yukkuri are easy.
The crowd is angry. They yelled that Chen's the only one who's uneasy!
Patche: So be it, Chen should not be easy.
Chen: Just wait
Patche: Too late!
Chen: I think yukkuri want to be easy because they feel uneasy
Patche: Mukyu? What does that mean ?
Chen: We know granddad and grandma used to be uneasy, right ?
Chen: So, why can they be easy now ?
Crowd: Because of Mister Human!
Chen: Yes, because there's human, we can be easy
Chen: Yukkuri became uneasy because they have to hunt and do cleaning
Mukyu: So, it's fate for yukkuri to feel uneasy!?
Crowd: So Mister Human is easy!?
Chen: Yes. When you think about it, human are easy.
Patche: But human are slave to let yukkuri take it easy!
Chen: Think of it. We can be easy now because human are friendly.
Patche: If human don't obey, we will punish them!
Chen: Think of the difference in power. Can you win ?
Patche: We will... Patche will lose
Patche admitted her defeat. She expected to see Chen's face looking down on her, but that's not what's happening.
Chen: But human are uneasy.
This shocked the crowd. It's totally different from what Chen said earlier.
Chen: Think, if human stopped working, what will happen to us ?
Chen: True. So understand that there's no absolute easyness in this world.
The debate ended.
Unfortunately, a group of yukkuri reported Chen to the leader. They said Chen is uneasy and Chen has denied easyness. She must be exiled from the clan.
Old Chen walks out of the park, watched by her pupil Marisa.
Marisa asked, why. Chen's answer is just that now she can be free. She can now learn more about truth of the world.
Marisa believed her master, so she followed her out despite knowing that yukkuri can't live for long without protection from human.
After that, no yukkuri in the park ever hear from Chen and Marisa anymore. After all, they foolishly challenged human and got exterminated.