Since Muichiro became a Pillar two months after taking up the sword, that means he went almost straight from sword to Final Selection to Pillar.
According to Tengen Uzui, Muichiro is one of two people who became a Hashira only two months after picking up a sword, the other being Gyomei Himejima.
Muichiro Tokito (時透 無一郎 Tokito Muichiro) is part of the Demon Slayer Corps in the Kimetsu no Yaiba (Demon Slayer) series. He is a genius and only took 2 months before becoming a Pillar at a young age and he uses the Breath of Mist (霞の呼吸 Kasumi no Kokyu).
While the group was able to defeat them, both Muichiro and Genya died due to the wounds inflicted by Kokushibo.
This caused his father to fall deeper into depression, making his father drown his sorrows with alcohol. Kyojuro not falling into despair instead read through the instruction book of the Flame Breath and trained himself to become a Pillar taking it upon himself to raise and help his younger brother.
Specifically, Muichiro was the Mist Hashira who made use of the Mist Breathing sword style. He was also the youngest of the Hashira at only 14 years old, being considered a prodigy of the Corps who became a Hashira only two months after joining the Demon Slayers.
This fact built his inferiority complex that made him feel unsuitable for a position as a Hashira, persuading him that Sabito would've likely received the mark rather than himself. Giyu's memories of Sabito.
Remembering the loss from his younger brother, Kokushibo roars at the absolute top of his lungs in anger and frustration. As he roars, dozens of the chaotic slashes release from his body, cutting Muichiro's lower half of his body clean off guaranteeing his death along with cutting Genya in half vertically.
Also Known As. MuiNezu is the het ship between Nezuko Kamado and Muichiro Tokito from the Demon Slayer fandom.
No, tanjiro didn't have any blood relate with Yoriichi. Yoriichi didn't have any descendant, because his wife who is still pregnant get killed before she can give birth to their child. Tanjiro's ancestor was Sumiyoshi. He is Yoriichi's friend, and didn't have any blood relate to him.
Afterwards, Muichiro would lose his memories and leave his old life behind to serve the Demon Slayer Corps. Due to his prominent strength and highly extensive training, he quickly rose to the rank of a Hashira in a mere two months.
Mist Breathing originally has 6 known forms and techniques, and a seventh one created and only utilized by the current Mist Hashira, Muichiro Tokito.
According to Tengen Uzui, Gyomei was one of the two people who became a Hashira only two months after picking up a sword, the other being Muichiro Tokito.
In the time since Yoriichi's death, Muzan and the Upper Rank 1 demon, Kokushibo, who is also Yoriichi's twin brother, killed anyone who knew Sun Breathing. While there are still descendants of Breath of Sun users, like Muichiro Tokito, the Mist Hashira, it's Tanjiro's family who helped keep the original style alive.
7 Shinobu Kocho, The Insect Hashira
That being said, one has to admit that she's arguably the weakest Hashira when it comes to pure strength. However, brawn is not the only way to determine strength in Demon Slayer.
Shinjuro saved a young Obanai Iguro from the Serpent Demon and reunited him with his cousin. Nonetheless, due to his cousin's attitude, Shinjuro had to separate them. Before retiring as the Flame Hashira, Shinjuro tore apart the Generational Flame Hashira Record of the Rengoku family.
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.
The Kamado family are descendants of Sumiyoshi, one of Yoriichi's closest friends, but since Sumiyoshi and Yoriichi aren't related, neither are Tanjiro and Kokoshibou. On the other hand, Muichiro is a direct descendant of Kokushibou. As for Tanjiro and Muichiro, they're just friends.
1) Giyuu and Shinobu
Tomioka Giyuu, the Water Hashira of the Demon Slayer corps, and Kocho Shinobu, the Insect Hashira, have quickly become popular with fans following their interactions in Natagumo mountain, and their subsequent meetings since then.
The reincarnations of Muichiro Tokito and Yuichiro Tokito; their gender is unknown but they are seen sleeping when going on a stroll with their mother. They were in mist-patterned blankets. The reincarnations of Shinobu Kocho and Kanae Kocho; they are beautiful female students from the nearby Sekirei Women's Academy.
He was soon decapitated by the combined force of Kanao and Inosuke, avenging Shinobu and her family. Trying to struggle for survival like Akaza, but lacking indomitable willpower as Akaza had, Doma's head slowly disintegrated and he met Shinobu's soul in the limbo, holding his severed head.
Muichiro is the descendant of Kokushibo, a former Demon Slayer during the Sengoku era, who later became Upper Rank One. When he first meets his ancestor in the Infinity Castle, Muichiro is shrouded by an intense fear completely new to him from the Demon's overwhelming presence.
Sakonji started wearing his mask because demons used to make fun of his gentle face.
These haori were later noted to have belonged to his late older sister, Tsutako Tomioka, and his deceased friend Sabito. During his battle with Muzan Kibutsuji, he loses his right arm. After the fight, Giyu cuts his hair down to shoulder length, now wearing it loose rather than tied into a ponytail.
She was the one who said that “the other Hashira hate Giyuu” because she likes to tease him or rather I would say because Giyu went against Shinobu to save Tanjiro & his little sister.