Shinobu and her older sister Kanae were from a wealthy family who worked in compounding medicine but their life was ruined when a Demon attacked their home killing their parents.
This was shown during her fight against Doma where she was able to keep fighting the Upper Rank despite losing a lot of blood, having one of her lungs punctured and being unable to breathe, a feat which made Doma doubt if she was human.
Talking about the salary, the lowest rank members of Demon Slayer Corps are roughly paid 20,000 yen (about US $173) per month while the Hashiras are paid as much as they want.
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.
GiyuShino is the het ship between Shinobu Kocho and Giyuu Tomioka from the Demon Slayer fandom.
Shinobu holds a strong resentment and hatred for Doma, due to him killing her older sister, Kanae.
Yae ( 八 や 重 え , Yae?) is a young woman who joins Giyu Tomioka on his travels in Giyu Tomioka's Story after her father Matazo transforms into a demon.
Sound Hashira
He is the fastest Hashira, and the second physically strongest. Obviously, then, Tengen Uzui is rather proud. He is demanding, fussy, boastful, and prone to selfishness. But he is also ultimately kind and caring, with great love for his three wives as well as the other Hashira.
Kuki Shinobu's job at the Grand Narukami Shrine is to perform praying rituals to dispel calamities. Her job in the Arataki Gang, on the other hand, involves educating members and solving problems.
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.
Shinobu's Demon Slayer uniform's jacket is originally designed to leave the center of the chest area open, similar to Mitsuri Kanroji's, but, as Shinobu disliked this aspect of its design, she burned the original uniform right in front of the Kakushi who had just given it to her and requested a fully buttoned version . ...
Curse of Kibutsuji
This curse besotted any who partake of Muzan's blood must be careful. The curse prevents Muzan's name from being spoken aloud, and any who do will meet a horrible demise. One demon, Susamaru, faced this reality when battling Tamayo.
5/14 Fastest Hashira In Running
Despite his large and muscular build, Tengen Uzui is the fastest runner among the Hashira.
8/13 Shinobu Kocho, The Insect Hashira
That being said, she's arguably the weakest Hashira when it comes to pure strength.
2) Sanemi Shinazugawa
He dedicated all his time and effort towards perfecting his skills as a swordsman which was shown during the fight against both Muzan and Kokushibo.
Sanemi is quite possibly one of the rudest Hashira to have ever existed. Although he's a powerful individual, as seen in the manga during his fight against Doma, one of Muzan's 12 Kizuki, he severely lacks people skills. Sanemi's rise to unpopularity stemmed from his treatment of Nezuko the first time he saw her.
Demon Slayer's adorable icon Nezuko has stolen fans' hearts for five key reasons, earning her the title “Best Girl” of the series.
Doma also displayed what arguably is his first true emotion, love, when he proclaimed his love for Shinobu after finding her cute.
Shizuka is seen often teasing Sanemi and making him annoyed, nevertheless, the two had still created a strong bond and relationship with each other. Eventually, after knowing each other for a while, Shizuka finally ended up having the courage and confessed, leading to them getting married after awhile.
Shinobu and Giyuu are not implied to be a couple, but some think the way they interact with each other is endearing in a "bickering couple" kind of way. Despite Giyuu looking serious, he has an aloof and airheaded personality that people don't like.