Keen Intellect: Shinobu possesses vast knowledge in using poison in combat. She has one of the best IQ in the Corps, having an IQ of over 200 making her a genius.
1 Muzan Kibutsuji
The Demon King Muzan Kibutsuji has seven hearts and five brains, making him one of the most intelligent characters in the Demon Slayer anime series.
Shinobu is very straightforward and always retains her calm and aloof personality in every situation. Even when demons don't agree to be her friend, a smile remains on Shinobu's face as she appears to enjoy punishing them.
Shinobu was noted to have a very close and loving sisterly relationship with her biological older sister, Kanae having been seen to be very close to each other since early childhood and having spent their childhoods happily together with their parents.
Doma also displayed what arguably is his first true emotion, love, when he proclaimed his love for Shinobu after finding her cute.
In fanon they usually portray Douma being comically in love with Shinobu while she despises him, or they both falling in love with each other and developing a romantic relationship despite Shinobu's initial reluctance.
Shinobu confessed her love to Guiyu. in episode 18 of Demon Slayer, Shinobu shows her liking to Guiyu.
After several incidents involving her reunion with Shinobu, Chihiro finally realizes that she has unconsciously fallen in love with Shinobu and only notices that now.
GiyuShino is the het ship between Shinobu Kocho and Giyuu Tomioka from the Demon Slayer fandom.
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However, her playful attitude is revealed to be fake—in reality, Shinobu holds a deep, intense hatred for demons due to almost all of her loved ones (her sister, her parents, and almost all of her tsuguko) being killed by them, so much so that she is in a near-constant state of anger.
11 Pisces: Shinobu Kocho
Shinobu is a compassionate, gentle soul that has the tendency to use her idealistic goals as a means of escaping reality and couldn't be a better embodiment of a typical Pisces.
Apart from her strongest feats, she is loved for her easygoing smile, which she continues to maintain even if the situation is not in her favor. However, later in the series, it was revealed that Shinobu's smile is nothing but a facade.
Senku Ishigami is believed to possess an IQ of 180 to 200, making him a highly gifted being. He holds a profound knowledge of chemistry, mathematics, physics, biology, and all other subjects. Using his wide sense of knowledge, Senku has proved himself to be the savior of humanity multiple times.
The husband of Shinobu is Koyomi Araragi, the protagonist of the “Monogatari” series. Through the flashback, it is revealed that Koyomi and Shinobu actually got married during a battle against a powerful enemy.
Shinobu opened her mouth and Giyuu did so as well, deepening the kiss. Giyuu was huffing little puffs of breath between kisses, while Shinobu's lips were quirked in mirth at how affected Giyuu already was.
Though never shown onscreen, Shinobu has a notable temper, namely in the way that makes even Inosuke Hashibira take notice.
She'll occasionally have a rage-induced outburst at a demon, but mostly the Insect Hashira is a model mentor for younger demon slayers. However, internalizing all her negative emotions toward demons has its downsides. Shinobu's anger has festered inside her for her entire life, and she hates that part of herself.
Shinobu Kocho Is the Weakest Hashira
The Insect Hashira, Shinobu's petite frame prevents her from being physically able to decapitate any demon, be it an Upper-Rank or the weakest demon in Japan.
In the first season of the Demon Slayer anime, Giyu Tomioka is set next to Shinobu Kocho during the Natagumo Mountain Arc. Though Giyu is much too stoic to openly admit his admiration of Shinobu, it is clear that they share an interest in saving the demons who have had their lives stolen by Muzan Kibutsuji.
When Giyu later hears about Shinobu's death, he suddenly recalls her smiling face while being visibly shocked and upset by the news. This contrasts to his reaction to death of his other fellow Demon Slayers such as Kyojuro Rengoku, Muichiro Tokito and Genya Shinazugawa, whom he didn't react to as emotionally.
In Chapter 205, we see Obanai and Mitsuri reincarnated and married, as they promised before they died, and they are running a restaurant together. In the volume extras it is revealed that they have five kids.