As the manifestation of Hantengu's anger, Sekido was in a constant state of vexation, irritation, and rage, even towards his fellow clones, which could be seen when he easily got angered when they failed to meet his expectations and were subdued by the Demon Slayers. Sekido was also seen to care very little about his brethren, as shown when he forcibly absorbed them against their will to form Zohakuten.