Anon's work is in the extermination division of Factory.
Recently he invented a machine to exterminate yukkuri using infrasonic wave. But the upfront cost is too high so his division wanted another way, cheaper way.
The tool should be cheap and avoid disposable items to save on expense.
Maximum personnels are three, ideally one. The division has traditionally been labour intensive and this is straining the budget.
In the past, extermination is done at night or early morning when yukkuri are still asleep. This way, less personnel can be used because there's no need to chase the escaping yukkuri.
But as time goes, the yukkuri starts to became more sensitive. When captured, they will scream. This scream is heard by other yukkuri who too starts to scream.
The screaming itself is not so bad. It's the complaint of citizen awakened in the middle of the night that stops Factory from doing this. Peoples can tolerate yukkuri screaming in the noon as something normal, but awakened in the middle of the night is a no-no.
That list down the requirements: have to be usable at noon, cheap and need only a few peoples on site.
When contemplating, Anon went to the park and enjoyed a seat. That's when a scum Marisa came and claimed that bench as its Place. Anon has to pay sweets sweets if he want to sit there and take it easy.
Anon got his inspiration. The cheapest solution for Total Extermination is to not do it at all. Factory only do Extermination when requested and the request usually came when peoples are bothered by the yukkuri. This means if the yukkuri never bother human, then average peoples will just ignore them.
The solution sounds simple, but difficult. Previously, lover groups had tried teaching yukkuri. Unfortunately yukkuri breeds quickly and their life is relatively short. Even if the group managed to educate the yukkuri, those "uneasy" teaching wont be passed down.
However, yukkuri have their own rules that they pass down, such as house declaration and about how food grows out on their own.
After designing, Anon and his boss came to the park with a female worker, A.
"Sweets sweets are delicious!"
"Stealing is uneasy!"
"I will only give to uneasy yukkuri!"
A used exclamation like how yukkuri stated their idea and rules.
After calling like that, scums and idiots came to A. They're all crushed and A proclaimed uneasy yukkuri is being punished, sorry for being strong.
This is to show the yukkuri that even human's little ones are strong (A looks like a jail bait).
Later, a Reimu came to beg because her little one is dying. This change of strategy is also in the plan. A asked Reimu to call herself uneasy useless yukkuri who can't raise her children. Normally, yukkuri would refuse because that means denying their own identity. This Reimu is a nicehead who will sacrifice her own pride for her little ones.
A will share the sweets sweets, but Reimu will have to bring her little one here. There's risk that Reimu will be attacked by scum, or have scums making hostage of her little ones.
A Reimu returned, but this is a scum. She bring her very healthy little one on her head. A asked that Reimu to repeat what "she" said before.
Of course, scum can't throw her own pride and claimed herself as single mother instead. She has "said" the uneasy thing previously and wont repeat.
The scum got crushed. This is to teach the yukkuri that being single mother doesn't mean anything.
When the real Reimu returned, A asked her to repeat those words in front of her little one. She then asked if Reimu think her little one is easy. Because her little one is easy, then Reimu must be easy. Reimu is a liar and got crushed.
From the beginning, A had no intention to help this yukkuri. The main thing they want to teach the yukkuri is to don't bother and don't approach human.
They repeat this several times around the park until a police came to ask A why she's walking alone in the park killing yukkuri. Anon and his boss have to came in to explain the situation. A looks like a teenage girl, and teenage girl who walk around killing yukkuri are seen as having mental problem by the public. This teaches them to make arrangement with the police first.
After repeating for four days with different peoples (so the yukkuri can't remember their face), the yukkuri stopped coming to bother human. When trash dump sites and flower pots got modified to counter yukkuri, request for Extermination dropped significantly.
Research also shows that using tools will increase the success.
This method is also performed routinely because when yukkuri's generation changed, the youngs will not remember the lesson about not approaching human.
Later, the job is given to part timers. Factory workers are trained to cooperate and capture yukkuri efficiently, but for job like this, training is not needed at all. In fact, they can safe more money by using part timers.
To keep those part timers from cheating, they have to take pictures of the yukkuri they killed and at times Factory workers will also patrol to make sure.
Thanks to this big success, Anon got promoted and his salary is raised.
There's just one thing that still bothered his conscience. The method he devised has made it difficult for his fellow abyuser to get yukkuri, especially scum. He really felt sorry for them.
But with the raise, he's going to buy a new TV set now.