Hashira are the strongest members of the Demon Slayer Corps, they use their breath and strength to fight against the demons of Muzan's side. There are a total of 9 Hashira in the Demon Slayer Corps, so do you know who is the weakest pillar in Demon Slayer ?
Kochou Shinobu is considered the weakest pillar in Demon Slayer
Shinobu Kocho is often considered one of the weaker Hashira (Pillars) in the Demon Slayer Corps, mainly due to her relatively low physical strength and fighting ability compared to the other Hashira. There are a few reasons for this perception. First, while Shinobu possesses incredible agility and speed, the raw power of her attacks cannot compare to Hashira who rely more on brute force, such as Rengoku or Giyuu. Therefore, instead of engaging in battles on her own, Shinobu makes the most of her speed and agility to strike at her opponents' weak points.

The technique that Shinobu uses, Insect Breath, is a unique and rare form of technique in the Demon Slayer Corps. This breath does not originate from the original breath forms and is not very powerful, but usually focuses on the use of poison. Shinobu's attacks do not need to be very powerful as they are enhanced by extremely dangerous poison, which can kill demons without having to decapitate them. However, because the effects of the poison are not always immediate, she is ranked as the weakest pillar in Demon Slayer.
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Shinobu's fighting style is not as skillful as the other Hashira.
One of the most notable things about Shinobu is her approach to battle. Rather than going head-to-head, she prefers to use her wits and quick wits to defeat her opponents. Shinobu often uses complex strategies and uses her cunning to her advantage. This fighting style may make her appear to be on the weaker side, but in reality, it is proof that she is a highly strategic fighter who knows how to use any element to her advantage.
Compared to the other Hashira, Shinobu is quite young and may lack some combat experience. This lack can make her appear weak in the eyes of others, especially when facing strong and experienced opponents. However, Shinobu makes up for this lack of experience with her ability to learn quickly and her acumen in combat situations.

So now you know who the weakest pillar in Demon Slayer is. While Shinobu may not be as powerful as some of the other Hashira, she is still an indispensable member of the Demon Slayer Corps. Her unique strengths, such as her intelligence, speed, and ability to use poison, not only make up for her weaknesses but also make her a vital asset in the fight against Muzan and the Twelve Demon Moons.