Shinobu Kocho is one of the 9 Pillars/Hashira (the highest rank of the Demon Slayer Corps), who live to hunt and kill the demons. She has a friendly, cheerful, and playful demeanor. She is always teasing, even to the point of being a sadistic teaser, and always has a smile on her face, regardless of the situation she is in. However, her outward behavior is just a facade; underneath, she has an intense hatred for demons and is always in a state of anger towards them for them killing her family.