1) Kyojuro Rengoku Kyojuro Rangoku is the Flame Hashira that was loved by the entire fanbase. His enthusiasm and an unwavering sense of justice enabled him to become the man that he was. Unfortunately, Rengoku was killed by Akaza, the Upper Moon 3.
1 Mitsuri & Obanai
Mitsuri had already entered the battle with grave injuries, so Obanai forced her onto the sidelines so she wouldn't get hurt anymore. Unfortunately, the Serpent Hashira also succumbed to his injuries. He and Mitsuri confessed their love and died together shortly after.
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. However, brawn is not the only way to determine power in Demon Slayer.
Death is inescapable in the world of Demon Slayer as the titular slayers continue their fight against the flesh-eating demons created by Muzan, the original Demon. But the death of Kyojuro Rengoku in Demon Slayer: Mugen Train is particularly poignant as the first on-screen death of a Hashira in the series.
Tengen Uzui
He is the fastest Hashira, and the second physically strongest. Obviously, then, Tengen Uzui is rather proud.
1. Gyomei Himejima. Gyomei Himejima, the Stone Hashira, is the strongest Hashira in the Demon Slayer corps in terms of strength and swordsmanship. He is the only person who uses spiked flails and an axe instead of standard swords to kill demons.
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.
A Tsuguko ( 継 つぐ 子 こ , Tsuguko?, lit. Successor) is an exceptionally talented combatant of the Demon Slayer Corps who is designated as the apprentice and eventual successor of one of the Hashira. Can You Slay These Demonic Questions?
Rengoku's performance against the demons on the Mugen train in the Demon Slayer movie was impressive enough to draw admiration from even Inosuke, and Rengoku ensured that not one of the 200 passengers died. Unfortunately, Rengoku succumbed to Akaza, the Upper Rank Three demon, after initially almost defeating him.
Obanai Iguro is one of the harsher Hashira members. He demanded that Giyuu be punished for allowing Nezuko to get away unharmed, and later restrained Tanjiro as he tried to help his sister. He hates demons and has little regard for his fellow Hashira, except Mitsuri Kanroji later on.
The warrior Muzan feared was a swordsman named Yoriichi Tsugikuni. Yoriichi was the only slayer before Tanjiro who came close to killing Muzan, and the flashback of their fight occurred in Chapter 187.
Muichiro Tokito (The Mist Hashira)
Muichiro Tokito is the youngest Hashira of the current group (aged 14), and yet, his age doesn't reflect his physical fortitude in the slightest.
1 Kyojuro 'Flame Pillar' Rengoku
And finally, let's get to the number one saddest death in the franchise, and of course, that's the death of the brightly burning Flame-Breathing user that is Kyojuro Rengoku.
Shinobu Kocho's tragic backstory is one of the most heart-wrenching in Demon Slayer. She and her sister, Kanae, were orphaned at a young age after their parents were killed by a demon. Thankfully, Gyomei Himejima came in the nick of time to save them.
Some of the characters who have faced Yoriichi and survived
This happened due to a treatment that had gone wrong. While he was being treated, Muzan killed the doctor because he was not able to observe any results. This turned him into one of the strongest beings that could defeat multiple Hashiras in one go.
Tengen is one of the only known Demon Slayer and Hashira to retire due to being permanently disabled instead of death or age, the other being Jigoro Kuwajima. He and Inosuke Hashibira are the only known Demon Slayers who use two Nichirin Swords instead of one.
With the loss of his left hand and left eye, Tengen Uzui decides to retire after his battle with Daki and Gyutaro. He is the second Hashira to retire due to being disabled.
As the Flame Hashira, Kyojuro is his generation's most skilled Flame Breathing user. He became evidently proficient in fighting with this Breathing Style, being able to singlehandedly defeat former Lower Rank Two, Hairo and later hold his own against Upper Rank Three, Akaza.
Demon Slayer has peculiar characters with incredible strength, skill, and presence. But, among this group of eccentric people, Kyojuro Rengoku still stands out from his colleagues due to his upright and exceptional bright personality. Yet, his fiery hair is also one of the biggest reasons he stands out.
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.
Kyojuro Rengoku's younger brother. He has a gentle, modest personality.
With her jovial and concerned attributes, as well as her “Moshi Mosh,” It is no wonder that Shinobu is the most liked Hashira in Demon Slayer.
Gyomei Himejima is the strongest Hashira in Demon Slayer. This fact has been established in the manga as Tanjiro, Inosuke and Zenitsu all agree that he is the strongest member of the Demon Slayer Corps. His strength was showcased during the fight against Kokushibo.
Mitsuri Kanroji is another Hashira who Tanjiro could definitely beat in Demon Slayer.