Senketsu

Senketsu is a one-of-a-kind Kamui handcrafted by Isshin Matoi with a singular purpose: to stand against the threat of Life Fibers. His awakening came the moment Ryuko fell into a hidden underground lab and her blood made contact with him, forging an unbreakable symbiotic bond between the two. Throughout their battle against Honnouji Academy and the encroaching Life Fibers, Senketsu functions as both Ryuko's living armor and her most trusted mentor—resonating with her blood to unlock powerful transformed states while remaining the unwavering emotional anchor at the heart of her journey.