Together with most other sibias, it is sometimes separated in the genus " Malacias ".
2.
With some sort of mechanical existence, airships exist, and the flying cities of Malacia and Tsuiraku itself have been of historical importance.
3.
In English, the word " malacia " is used in medicine to mean an abnormal craving for certain kinds of food, and in pathology to mean an abnormal softening of organs or tissues of the human body.