The following mainly comes from initial traditional tribes in general, not including tribes who have mixed origins and other case-by-case variable exceptions.

As one of the nine foundational tribes, the [Blackmud Demon Tribe] were initially as several of separated underground-living tribes who had associated customs on mineral-mining and clay-craftmanship. After receiving their own Grimm-form,

[Grimm-form appearance]

• single wavy black mud-like linear stripe growing under each eye and extend to jaw outline in vertical-symmetrical patterns on face

• single wavy black mud-like linear stripe from upper part of the limbs spread to full-painted at the end of the limbs

[Grimm-form ability]

• producing the black mud-texture substance made of Grimm-like matter from wavy stripes on the body

Combat Application:

[Societal Aspects]

[Cultural Aspects]