Mugura

The Mugura is a type of mushi that is part of a mountain's nervous system.

Appearance
They have a vine-like or neuron-like appearance that transfuses with the vegetation on a mountain. They are grey or black in color.

Abilities
They can combine with a mushishi to allow them to keep an eye on all the things happening on their mountain. Mushishi can also undertake a ritual called Mugura Nori, which gives them temporary control of the Mugura and thus the ability to see all over the mountain.

Weakness
They are weak and can be torn off by the master of a mountain or another mushishi.