Even after losing his left hand to Gyutaro, Tengen was able to fight the Upper Rank on even terms due to completing his Musical Score, allowing him to deflect Gyutaro's attacks, cut off his arm and pin him down at the cost of losing his left eye.
After an intense battle and the support from Uzui's wives, Tanjiro, Inosuke, and Zenitsu, the demons are defeated. However, Uzui loses one of his arms and an eye in the fight, leaving Tengen Uzui with no choice but to retire from the Demon Slayer Corps.
This time, Uzui tanked the blast when he pulled Gyutaro away and got his arm cut off by Gyutaro. He's severely poisoned, so he stopped his heart for a brief moment to recover.
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.
Gyutaro manages to poison Tengen during the fight, preventing him from decapitating the Demon. After they finally manage to bring down the Demon siblings, Tengen ends up losing his left hand and eye in the process.
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.
The core components of a Demon Slayer's strength comes down to one's Breathing Style, battle IQ, and physical strength. These are even more important for those at the Hashira level, who will likely combat Kizuki rank demons regularly. In these three regards, Tengen Uzui is far from the weakest Hashira.
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.
Sound Hashira – Tengen Uzui (Alive)
In fact, he would have died from the Blood Sickles of Gyutaro if Nezuko hadn't used her Blood Demon ability to save him. But he doesn't come out intact. He loses an eye and an arm.
He would be disoriented by the shockwaves created by Akaza's blows. Tengen has anti-demon bombs that can disorient them for a short period of time, but this wouldn't be an effective strategy when Akaza uses Compass Needle, which allows him to accurately pinpoint and aim for his opponent's weak spots.
After the final battle
It is confirmed in the Volume 23 extras that Inosuke and Aoi did eventually end up together and that they have two great-grandsons, one of which is Aoba.
Let's look back at each Hashira's introduction as a refresher on these ultra-powerful Demon Slayers. Giyu was the first Hashira to be introduced in the series, making his debut in the very first episode. After rescuing Tanjiro from the newly transformed demon Nezuko, Giyu prepares to...
Sensing their despair, Doma offered a chance to him and turned both Gyutaro and Daki into demons.
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.
Uzui's Greatest Weakness Is His Wives
During the "Entertainment District" arc, Uzui told Inosuke and Tanjiro to abandon the mission when Zenitsu was captured, and he is more concerned with his wives' safety than his own.
Makio. Makio is a distant cousin of Tenzen Uzui. She is the middle wife by age and is considered violent, brash, and boisterous at times. When it comes to Suma, Makio has little or no patience for her as she berates Suma for being cowardly, as seen when the wives fought an underground cavern.
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.
Anime Debut
Seiji Yukinari ( 雪 ゆき 成 なり 聖 せい 司 じ , Yukinari Seiji?) is a Demon Slayer and the Ice Hashira ( 氷 こおり 柱 ばしら , Kōri Bashira?) of the Demon Slayer Corps.
Muichiro Tokito is the youngest out of the Hashiras, being only 14 years old. He is recognized as a prodigy among the Demon Corps, becoming a Hashira only two months after becoming a Demon Slayer.
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.
The Hashira of Demon Slayer are all vastly different when it comes to their abilities, and it can be hard to compare them when their fighting styles vary so much—but when it comes to power, Gyomei Himejima is easily the strongest of the nine.