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 [Darkvine Plantman Tribe] were initially as several of separated tribes who had associated customs on plant-planting and plant-material utilization craftmanship. After receiving their own Grimm-form,

[Grimm-form appearance]

(Initial stage form)

In said stage form of Grimm-form transformation, aside from "turning their sclerae's color from white into black" along with their iris will glow at a certain level,

• three black vertical thorny vine stripes growing under each eye and extend to jaw outline in vertical-symmetrical patterns on face

(Terminal stage form)

In said stage form of Grimm-form transformation, aside from these above-mentioned appearance characteristics,

• thorny vine stripes on back, which has a single wider vertical thorny vine stripe in the middle along with multiple thinner branches spreading around the ribs in vertical-symmetrical patterns, which look like upside-down tree without any leaves

• three or four black thorny vine stripes spinning around the limbs (usually one vine on lower part at the end of the limbs while two vines on upper part at the end of the limbs )

[Grimm-form ability] In said Grimm-form, aside from negating Grimm's sense and mask said users’ "human/soul presence", making the said user seem "invisible" and "undetectable" to the Grimm which able to reduce the Grimm's attraction and even further decrease the Grimm's aggression and hostility tension toward the said user and having enhanced said user’s basic physical properties (including strength and durability) that allow them to have similar equal footing with huntsmen and huntress,

• producing the blackish-purple thorny vines made of Grimm-like matter from thorny vine stripes on the body (having retractable thorns)

Combat Application:

{Individual level}:

{Group level}:

[Societal Aspects]

[Cultural Aspects]