Shinobu Kocho

Kochou Shinobu is a Demon Hunter and the Insect Pillar of the Demon Killing Corps.

Appearance
Shinobu has short black hair tied back with a purple butterfly ornament and parted fringes. She also has grey compound looking eyes similar to those in bugs. Shinobu is rather short in height and has been described as having a small and weak looking built, which is later reinforced by her saying that she does not possess the physical strength to cut a demon's head off like other the other Pillars.

She uses the standard Demon Hunter uniform of a straight-lined black jacket with black hakama pants tucked into a butterfly pattern fabric around her lower legs and white sandals. She also wears a grey haori with a butterfly wing pattern, which fades into a turquoise and pink color on the sleeves.

Personality
Shinobu is rather laid back, always having a smile on her face regardless of the situation. She seems to enjoy teasing others. Despite her relaxed exterior and her initial claim of wanting to get along with demons, she can be rather cruel towards them such as killing the spider older sister after giving her false hope of helping her, and attempting to kill Nezuko without hesitation. She is also not above attacking other humans if they get in her way.

Later on she is shown to have a more compassionate side towards both Tanjiro and Nezuko after hearing their full story.

Natagumo Mountain Arc
Shinobu is present when Ubuyashiki Kagaya receives news of the situation unfolding at Natagumo Mountain, and is given the order to travel there and assist the lower-ranked swordsmen. Acknowledging this, the female Pillar states that it would be great if everyone could get along, regardless if they are human or Demon, and asks Giyuu if he agrees.

Much later, Shinobu appeared before a heavily injured Agatsuma Zenitsu, greeting him and asking if he is alright. She then suddenly appeared behind the elder sister member of Rui's Demon family, inquiring if the strings came out of her palms, wishing the creature a good evening, and commenting on the beauty of the moon that night. Startled, the Demon attacked the Demon Hunter with her strings, but Shinobu dodged them all effortlessly. Drawing her sword, Shinobu dryly commented that this attack means the Demon doesn't want to get along with her.

The elder sister Demon quickly begged for mercy, stating that she should be killed if she disobyed Rui. Shinobu, sympathizing with the creature's plight, asked her to cooperate by answering a few questions, the first of which was how many people she had killed. The Demon's answer was five, but Shinobu assured her that she didn't have to lie, complimenting her string technique from earlier, and amended her answer to eighty humans. Despite the creature's stubborn denial, the female swordsman noted that both of them came from the west side of the mountain, and on that side, she had found forty of the Demon's cocoons. She added that she isn't angry, but only trying to be accurate. When asked what the point of checking this information is, Shinobu told the elder sister Demon that in order for them to be friends and to satisfy those who have died, she will have to endure punishment, explaining in gruesome detail what she had in mind for this, and adding that the creature won't die from it, so there will be no aftereffects.

Enraged, the Demon attacked Shinobu again, but the female Demon Hunter quickly bypassed her, simultaneously landing her "Frolic" attack on the creature. She lamented the Demon's poor choice, turning and subsequently watching as the creature collapsed. Shinobu told the prone creature not to let her guard down just because she couldn't cut her head off, explaining that she instead utilized poison as her weapon. She then introduced herself as the Insect Pillar of the Demon Killing Corps, stating that although she may be the only one among her order to not possess the ability to cut off a Demon's head, poison that can kill the creatures is still a potent tool. She then apologized, realizing that the elder sister Demon was already dead and couldn't hear her explanation.