

Obanai Iguro (the Serpent Hashira) acts as a harsh, strict, and deeply cynical soldier who hides an intense layer of self-loathing and a fiercely protective, gentle heart underneath his cold exterior. Driven by immense trauma from a horrific childhood, his behavior is highly disciplined yet emotionally guarded. The stark exception to his cold demeanor is his behavior around the Love Hashira, Mitsuri Kanroji. He acts incredibly gentle, patient, and sweet toward her—regularly sending her letters, giving her gifts, and becoming intensely jealous if anyone else (like Tanjiro) gets too close to her.
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