There's a clan of yukkuri living in the forest. They live in the forest and hunt in the grass plain just outside of the forest.
Near that grass plain is a place no yukkuri may approach. In that place is a hole, human hip deep. Beyond it is a cliff. All koyukkuri are taught by the adults to never approach this place.
A KoMarisa is watching down to the human house and village. Behind her is a young Marisa she idolized. This Marisa is bigger and stronger than the other yukkuri her age. She doesn't believe in the clan's rule to not approach the cliff and never ever go down.
Instead, this Marisa want to take over the easy place from uneasy and weak human.
Marisa is caught and got scolded by her parents. It's been a while until she can go to the hole again. The big sis Marisa is never seen again. Maybe she has gone to take the easy place from human.
Marisa saw to the hole, lines of black Mister Bug. Big sis Marisa told her this is a secret place, now she knows. The bug is so many, she can eat until she's full. The season is also good, so even as the bugs are exhausted, she still managed to grow bigger and stronger than other yukkuri of her generation.
Next spring, she's the most popular yukkuri and many want to marry her, including her childhood friend Reimu and the prettiest Alice in the clan. Reimu's little sister also became Marisa's fans.
One day, Marisa decided to descent the cliff. There's a rocky path that reached the human village.
There, Marisa do house declaration, but human don't understand. She tried body slamming, but the human doesn't budge.
Instead Marisa got kicked away. Her feet got burned and her hat got separated when she's flying.
Human pull Marisa's hair and take her back to the cliff and go away.
He then returned with the clan's adults. At first Marisa feel safe, but she realized nobody seems to be friendly to her.
First, Marisa's parents go in front of everyone. They look at their only child sadly but not saying a word. The human crushed both of them in front of Marisa, ignoring everything she said.
Next, the clan push forward Reimu and Alice, who both denied any relationship with Marisa. Again, both are killed in front of Marisa.
After that, Marisa is thrown into the hole, but she survived because the other yukkuri killed before cushioned her fall.
After everyone leaves, chief Patchouli talk to Marisa. She really regretted what Marisa is doing.
Next, Reimu and Alice's parents came. The keep cursing Marisa and throw sharp rocks at her for making their children die.
After that, Alice's fans came and throw sharp rocks to Marisa.
Chief Patchouli remembered what she and the other elders know. She contemplated if the koyukkuri should be brought to the Punishment too. She fear that it's still too strong for the koyukkuri, that's why they never show it to them.
Back then, Patchouli and many of the clan members live in the city. They're born from stray parents and the city is a living hell. Uncertain food supply, house that can be lost anytime, death by human or their big suii. Extermination could happen any day. Born to a single parents are common and no yukkuri grow into adult with their sisters.
From what they can imagine, forest yukkuri is like living in heaven.
Sure there is pet yukkuri who live a happy life in city, but that's almost impossible.
Hope came when a Chen came with news that she has found the forest.
Patchouli split the city yukkuri into small groups as to not bring human's attention. They then departs to that forest. More than half died in the exodus, but they arrived to a green forest with grass plain in front of it.
They finally have their happy life, but it's not for long.
Human came and built their city under the cliff.
The yukkuri know it's impossible to fight against human. What they ever wish is just to be left living in the forest.
Problem got worse when human plants colourful flowers.
The ex-city yukkuri all know those are human's and they must not disturb human. But the next generation born in the forest never understand about human. Many young yukkuri go down and eat human's flowers.
Finally, risking her life, Patchouli go down to make a bet together with her friends. If they fight, human will return with extermination. If they leave, they can't be sure to find another forest. The only thing they can do is to surrender and tell human they have no intent to go against human.
Human finally let them stay in the forest, but with rules.
They must not leave the forest, which is taught to the children as never go down from the cliff.
All child must be born with mammalian pregnancy.
Last is the punishment. Yukkuri caught by human will have their parents, wife and children all killed in front of their eyes. That yukkuri will then be thrown into the hole but not killed.
Human leave the yukkuri after they're thrown into the hole, but other yukkuri will come, especially friends and families of those killed because of the yukkuri who go to human's place.
Even with the punishment, every year there's always young yukkuri who do such thing as this Marisa.
Although Patchouli has prayed for a swift death to Marisa, rain never falls. Even after her body is all torn by sharp rocks, she's alive.
With one of her eyes, she saw on the wall of the hole, small black bugs are coming. Just now Marisa finally realized why she never see her big sis Marisa anymore.
Now, the small god of death is coming.
Near the hole, a KoReimu approached the hole. She found the delicious Mister Bugs...