Senketsu (鮮血 lit. fresh blood?) is a main character in the anime series Kill la Kill. Appearing as a living sailor uniform, he is a Kamui created by Isshin Matoi and was found by his daughter Ryūko Matoi, becoming her ally in her battle against Satsuki Kiryūin; and later, Ragyō Kiryūin and COVERS.
Senketsu appears to be a navy-blue and red sailor suit with the midriff shown and a lower cut skirt. When Senketsu is on his own, the section above the skirt resembles a mouth, in that he is attached to his lower jaw in the back. When he is worn, however, the skirt and the rest of him are completely separate exempting some suspenders. He speaks with a deep male voice, implying the male pronouns, even though kamui can technically be assumed to be sexless entities.