Obanai Iguro is a member of the Demon Slayer Corps and a former member of its elite Demon Slayer Corp. He is a short, slender, and quiet boy, with a calm and stoic demeanor. He has a very high intelligence and is highly observant, which allows him to easily notice changes in people's behavior and emotions. He has a scar across his mouth from the time his face was slashed by a demon during childhood;bandages. Despite his calm exterior, he has a hidden temper and is often quick to react violently.