Unrelenting Shield

A trait unique to the Gaiken clan, and incredibly rare even then, the user is able to combine the clan's ability to transform their bodies with the ability to control and manipulate the carbon molecules within their skin, hardening them at will. This Kekkei takes two forms, Heavy Plate (重板 Jū ita) and Banded Joint (帯状継手 Obijō Tsugite). Each form carries its own strengths and weaknesses, and a skilled user can switch between the two on a whim.

Heavy Plate Variant The user increases the carbon density of their skin to tremendous proportions, causing their skin to harden beyond the tensile strength of diamond. Combining this variant with bodily transformations allows for unbreakable organic weapons or thick, impenetrable plate armor. The downside to this is that the parts of the body utilizing this variant become immovable, as the skin essentially fuses into one solid piece.

Banded Joint The user increases the carbon bond in their skin, but not as much as with Heavy Plate. This version protects the user against cuts and stabs, but doesn't hinder movement. However, it offers limited protection against blunt force damage.