Kaimetsu's Evolution Stages

Throughout the course of Kill la Killer, Kaimetsu undergoes a long period of development and power cultivation which is brought about due to Haruo's constant and strong contact with the life fibers within his Goku Uniform. Originally, Kaimetsu was another generic Goku Unifor with no ability to think, act out, or contact its wearer, but through sheer understanding, Haruo was able to develop it into something more. This is what's referred to as "Life Fiber Evolution", the true, original process in which humans were meant to establish a relationship with life fibers and bring about their true powers.