Mask Bug

Mask Bug (仮面状の蟲) is a special insect found both within YGGDRASIL and the New World.

Appearance
A beetle-like creature with the image of a human face painted on its back.

Abilities
Besides disguising itself as a human face, it’s just a giant insect.

Trivia

 * Entoma Vasilissa Zeta uses a Mask Bug to conceal her insectoid features.
 * In the first Episode of the Anime, Entoma is shown wearing a Mask Bug that had its eyes closed.