Organic Steel

This technique alchemically re-arranges the configuration of carbon atoms of user’s body, allowing them to convert their skin into Graphene a substance that has strength beyond steel. The process is virtually instantaneous. The technique can be used to partially strengthen the density of selected parts of the body during battle, or the effect can be extended to its entirety. While in the armored state, user possesses the same degree of mobility that they do in their normal form.

Trivia
Organic Steel can be compared to One Piece's Supa Supa no Mi.