Summary by Salem.
This is everyone's yukkuri place. Here, everyone lives together. Yes, there are scums, but the punishment for scum is to be taken care of by their leader Dosu. Besides, scum usually disappeared by themselves, so the other yukkuri doesn't worry too much.
In a corner of the clan, live a strange Patchouli. She's also called the inventor Patchouli because she likes to create a lot of tools. Strangely, half of what she created always disappeared.
Today, Patchouli finished her creation after 30 years of painful efforts (actually 30 minutes). It's a stone tied to a stick and it will make digging home easier.
Tired after work, the weak Patchouli take afternoon nap without even building a barrier.
A scum Reimu heard it and steal Patchouli's "Mukkyuri Shovel" to dig her own home. After digging only 20 cm, Reimu gave up and starts crying and rolling inside her newly digged hole. Of course, getting violent like that in nest hole freshly digged in wet soil is dangerous. The cave collapsed and buried Reimu.
Patchouli wakes up and realized her invention is gone. But she's used to it. Patchouli starts her next invention. It's a Mukkyuri Flair, a weapon so weak yukkuri like her can fight against Mister Bug too.
Tired after work, Patchouli take an afternoon nap.
A scum Marisa heard it and steal Patchouli's invention. This Marisa found nobody and starts challenging a big tree who's in her way. She slammed to the tree with that flair and stabbed herself.
Patchouli wakes up and once again found that her invention is gone.
So, how did this Patchouli survive ? She's a hikikomori and always doing her invention. How did she get her meal ?
Dosu came to Patchouli to send her gratitude. Many yukkuri in the clan has been thankful to Patchouli who has made traps for the scums. But Patchouli knows nothing of it. She only want to continue inventing things.