Glossary

General

Sandstar

A mysterious substance integral to the world of Kemono Friends media. Upon making contact with organic or inorganic matter, Sandstar turns things into Friends or Ceruleans.

Friend

The result of Sandstar making contact with organic matter, Friends (フレンズ) take on the form of human girls, but with features and outfits that closely resemble their original appearance. In addition, Friends demonstrate both abilities and limitations reflective of their former selves. Like humans, they are able to speak and have a high capacity for learning and retaining information, although this varies from Friend to Friend. In addition to regular living creatures, animal remains (e.g. fossilized remains of extinct creatures or even a single lock of hair) and human ideas (e.g. mythological beasts) have been observed to turn into Friends.

Upon death, either by Ceruleans or unrelated accidents, Friends revert into their original form, and their lifespans rewind to the point immediately after their transformation. Subsequently, this comes at the expense of any memories gained as in their human form. It is as of yet unknown if a Friend's memories will return in the unlikely case that they came into contact with Sandstar post-reversion.

Cerulean

The result of Sandstar making contact with inorganic matter, the Cerulean (セルリアン) are a mysterious race of violent and aggressive monsters which serve as the collective antagonist of the Kemono Friends universe. They are typically amorphous in appearance, although Ceruleans taking on more distinctive forms have been observed in the past. Their name is a portmanteau of "Cell" (セル/seru) and "Alien" (エイリアン/eirian), owing to cell-like shape of the basic model and their otherworldly, invasive character.