A very dangerous disease that, appears for the first time in chapter 9 of the first game.
Also know as “deadly sleep”, this illness starts with a very strong fever, making the infected one to fall asleep. After a while, the fever will be gone. However, the victim will not wake up ever again, and will die a few days later if not treated.
There is, but one way to cure it, by using a purple flower called Tokitsubata(トキツバタ), but, since this illness start spreading, the noble class started to monopolize the plant and it became rare.
In the game
It started with Rami, but soon all children in the Flat Gang ended sick. To cure them, the protagonist helps a drugstore owner named Shion and his disciple Akane to get the ingredients, which ends in a fight with the royal army.