Senketsu is a sentient sailor uniform and a central character in the anime series 'Kill la Kill'. Created by Dr. Isshin Matoi, Senketsu is made from a rare form of Life Fibers, granting him unique powers. He serves as a powerful combat ally to the protagonist, Ryuko Matoi. Senketsu can transform and enhance Ryuko's abilities, allowing her to battle against the oppressive student council of Honnouji Academy. Although Senketsu is a piece of clothing, he possesses a distinct personality and forms a deep bond with Ryuko, offering guidance and support throughout the series.