Anti-yukkuritis, or "un-easy sickness", is a lethal disease for yukkuris.
Yukkuris will be possible to develop anti-yukkuritis when they are fallen into deep depression, overwhelmingly stressed, or left with serious psychological trauma.
Yukkuris who developed anti-yukkuritis will enter a mentally-dead state. They will stop all their common living actions like moving, wiggling bottoms, doing rub-rub or stretch-stretch, eating food, excreting, sleeping, mating, and others.
All they will do are expressing a mad, dull, and retarded face and crying "Easy" repeatedly.
They will no longer react to external stimulation such as greeting "Take it easy", doing rub-rub, or even beating.
Tears, saliva, urine and faeces will come out without control.
Unable to eat anything, the sicked yukkuris will die of starvation in a short time.
In most of the works, once a yukkuri develops anti-yukkuritis, there is no way to cure her.
The tag should be used when yukkuris develop such a disease.
madness is similar to this tag.