Cellien

The Cerulean (Japanese: セルリアン Hepburn: Serurian) are an aggressive, invasive species of monster which is formed by the union of Sandstar and inorganic matter. They are mainly amorphous in shape, although they come in various shapes, sizes and power levels. They are the collective antagonist of the Kemono Friends multimedia franchise. Ceruleans are a threat to Friends and humanity alike, absorbing and devouring them if given the opportunity.