Stiffening

Stiffening (硬質化) is a Quirk used by Shikkui Makabe.

Description
Stiffening gives Shikkui the ability to harden anything he touches by kneading objects together with both his hands. It doesn't take much time for his targets to harden but his Quirk can't be used on living organisms. Shikkui was able to harden rubber balls to such a degree that they could be thrown through the ground.

Trivia

 * This Quirk is the inverse of Hardening, which only allows the user to harden their body.