Shinobu Kochō

 The current Insect Hashira. She is rather coolheaded and always has a smile on her face, no matter what situation she is put in. She enjoys teasing others, mostly she likes to annoy Giyū Tomioka, about how no one likes him. Behind her cheerful facade, she harbors a deep rage towards all demons for taking the lives of many of her loved ones, including her older sister, with Nezuko being one exception after learning more about her. Unlike the other Hashira, she does not fight with breathing techniques, using instead a small, thin sword with only a cutting edge on the tip to kill demons by inoculating them with a wisteria-based poison she developed. Shinobu sacrifices herself to defeat the Upper Moon Doma, by consuming massive doses of wisteria before allowing him to absorb her body to poison him, just to be later avenged by Kanao and Inosuke. Before dying, she also assists Tamayo in developing a mix of poisons the demon uses to help defeat Muzan.