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.
Even after losing his left hand to Gyutaro, Tengen was able to fight the Upper Rank on even terms due to completing the 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.
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.
Tengen lost his arm and was seen lying on the ground unconsciously because of the effect of Gyutaro's poison. Subsequently, he rejoined the battle by protecting Tanjiro with one blade in his right hand and the other clenched in his mouth.
Tengen Uzui retired from the Demon Slayer Corps. However, he returns in chapter 132 (Hashira Training arc) to monitor and lend some help with some basic stamina training.
Tengen Uzui
Even though he is large and muscular, and uses that to his advantage, his fighting style relies more on aesthetics and flashiness. He is the fastest Hashira, and the second physically strongest.
Shinobu Kocho Is the Weakest Hashira
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.
With all said and done, Tengen Uzui is one of the strongest and most extremely skilled Demon slayer in the series, his physical abilities, combat skills and strategic thinking makes him a tough opponent to defeat in a battle.
Like most of the characters, Tengen Uzui does have a descendant that looks just like him. His descendant is named Tenma Uzui and he's an Olympic-level gymnast representing Japan.
Despite having horrible wounds himself, Tengen still shows his concern for Tanjiro's well being as he tells him to stay still, if not he would die from his injuries.
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.
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.
Tengen Uzui's clear admiration for Kyojuro Rengoku, as well as his high praise for Gyomei Himejima and Muichiro Tokito, is the only real clue that the audience has gotten about how the Hashira feel about one another.
i know, though, some believe he loves hina (21) the most, because he had the most interaction with her in the manga and they have the most “husband-and-wife” feel. we also have to remember that suma (19) was tengen's first chosen wife—they both personally agreed to letting hina and makio (20) into their relationship.
The unnamed ninja of the Uzui family is the father of Tengen Uzui and eight other unnamed siblings, and is a sociopathic and abusive ninja clan leader who sees his clan's survival over his family.
Makio is actually a distant cousin of Tengen's.
Suma ( 須 す 磨 ま , Suma?) is a supporting character of Demon Slayer: Kimetsu no Yaiba. She is a kunoichi and one of Tengen Uzui's wives.
Enhanced Hearing: Tengen has a heightened sense of hearing similar to Zenitsu Agatsuma.
Rengoku's fight in the Mugen Train arc showed his incredible speed and reflexes. He was able to match Akaza's speed, and his movements were so fast that it was almost impossible for the naked eye to keep up. Tengen, meanwhile, is the fastest runner out of all the Hashira.
1 Fifth Form: String Performance
This is the strongest attack that Tengen has used so far in the anime. In this move, he alters the gripping style. He grips one of his blades in an unorthodox manner, and then he begins to spin the other blade by utilizing the chain that holds the blades together.
Nezuko setting Tengen on fire. By the end of the battle, Gyutaro's poison has spread throughout Tengen's body resulting in his inability to speak. As he lays dying from the poison, Nezuko Kamado intervenes and uses her her Blood Demon Art to burn the poison out of his system, allowing him to rejoice with his wives.
4 Muichiro Tokito, The Mist Hashira.
1) Shinobu Kocho
The Insect Pillar of Demon Slayer Corps, Shinobu is undeniably the smartest individual.
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.