Shinobu Kocho is a capable Demon Slayer whose worthy of being the Insect Hashira. That being said, she's arguably the weakest Hashira when it comes to pure strength.
As the insect Hashira of the Demon Slayer corps, Shinobu is an extremely powerful and skilled Demon Slayer, however due to her petite stature, lack of physical power and her inability to completely slice off a demon's head she had to resort to her creativity to kill demons in the heat of a battle.
When it comes to pure strength, Shinobu Kocho is the weakest Hashira in Demon Slayer. She doesn't even have enough strength to decapitate a demon's head and she makes up for it by injecting poison into the demons.
But there is one who is the friendliest of them all, and that is Kiyogiro Rangoku, the Flame Hashira. Among the pillars, there is not a single negative thing revolving Rangoku. Such an honest guy, and his character influences others positively. In Demon Slayer, Liu and Rangoku are not shown to have any interactions.
The Wind Hashira has one of the saddest backstories in Demon Slayer. His mother had turned into a demon and had killed five of his siblings. He was forced to kill his own mother in an attempt to save his only remaining brother, Genya.
14 She Has A Really Sweet Relationship With The Hashira Mitsuri Kanroji.
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. At one point or another in the manga, all nine Hashira in Demon Slayer encountered an Upper-Rank.
It's been confirmed multiple times that Shinobu is the fastest and perhaps most agile hashira. Like Douma blitzed her, she also blitzed Doma, getting a solid clean stab on his head. She is extraordinarily quick.
The secret to Gyomei's powers is that they are governed, regulated and enhanced by his emotional capabilities. So in a sense, his crying is a sign of his strength rather than weakness. As a gentle giant, Gyomei's character can be seen as a deconstruction of what makes a person strong in Demon Slayer.
Inside of Limbo, Doma, having heard and been touched by Shinobu's strong faith and belief in her comrades and fellow Demon Slayers' ability to defeat the demons and slay Muzan, seemingly begins to develop genuine feelings of romantic attraction towards Shinobu.
Although Giyu maintains a cold and distant stance, among all the pillars, Shinobu is the one who understands him the most and has the best relationship with him. Shinobu says that Giyuu is hated by other people, which can seem mean, but in reality she actually supports him.
Shinobu and Giyuu are not implied to be a couple, but there's a healthy portion of the fandom who read a little more into their combative interactions. Some even believe that Giyuu and Shinobu embody a bickering couple who are beyond comfortable with each other.
The young Tanjiro is not only one of the greatest demon slayers, but thanks to his kind nature, he's also one of the most honorable characters of the series. Tanjiro not only showed selflessness and love towards his sister and the people he cared for but even showed kindness towards his demonic enemies.
The Insect Pillar of Demon Slayer Corps, Shinobu is undeniably the smartest individual. She might not be physically stronger than others, but her intelligence is what kept her going. Shinobu is proficient in medical knowledge and can also create poisons out of wisteria flowers that are lethal to demons.
It is later revealed in an extra chapter that he cries extremely easily at almost anything, even crying for something as minor as when the garbage is messy. He was taught by a fellow monk. Gyomei loves cats, a trait he has in common with the Love Hashira, Mitsuri Kanroji.
Sanemi Shinazugawa
In their initial encounter, Sanemi held a deep hatred towards Nezuko due to her nature as a demon.
Many people believe she's the weakest because of her being physically weak and her loss against Doma.
Demon Slayer's Tengen Uzui is considered to be one of the weakest Hashira due to almost losing this fight, but the fact is that Tengen only looks weak when compared to the most overpowered Hashira.
2) Sanemi Shinazugawa
His fast movement, combined with his excellent swordsmanship, makes him a remarkable demon slayer. Most of his attacks are purely offensive due to his breathing style. Being a user of wind breathing, he is undoubtedly fast. This can be seen during his fight against Kokushibo.
Shinobu is the weakest in terms of physical strength, and while the winner for the other two categories is debatable, it certainly isn't Tengen. Be sure to keep up with all Demon Slayer anime, video game, and live-action news as 2022 progresses.