Obanai Iguro (伊い黒ぐろ 小お芭ば内ない Iguro Obanai?) is a major supporting character of Demon Slayer: Kimetsu no Yaiba. He is a Demon Slayer of the Demon Slayer Corps and the current Serpent Hashira (蛇へび柱ばしら Hebi Bashira?).[3]