[Kimetsu no Yaiba | Hashira-Kamaboko Age/Role Swap AU]
“Without Nezuko, I don't know what to do anymore.” ——— Kamado Tanjirou
“I will find a way to turn my sister back into a human! Just wait, Shinobu-chan! Your big sister got you!” ——— Kochou Kanae
Demon Slayer Corps - Ubuyashiki Family ▼
The current head of the Ubuyashiki family and the leader of the Demon Slayer Corps.
Ubuyashiki Kuina - Ubuyashiki Kanata (17)
Two younger twin sisters of Kiriya. They are helping him with the Demon Slayer Corps.
Ubuyashiki Kagaya (Deceased)
The previous head of the Ubuyashiki family and the father of Kiriya. He had passed away during the war 8 years ago.
Ubuyashiki Amane - Ubuyashiki Hinaki - Ubuyashiki Nichika (Deceased)
Kiriya's mother, Amane, and two of his older twin sisters, Hinaki and Nichika, had passed away along with his father during the war 8 years ago.
Demon Slayer Corps - Young Members ▼
Breathing Style: Water, later Flower
When she was 12, her parents were killed by demons while her younger sister got turned. Luckily, both of them got saved by the Water Hashira Makomo. Makomo then sent them to her previous master, Urokodaki.
She is Kanae's younger sister who was turned into a demon. Luckily, she retained some control and did not devour her sister. With the help of a special serum developed by Nezuko and Yushirou, Shinobu now only needs a bit of blood and mostly sleep to survive.
He is the younger brother of the Devour Hashira Genya and a student of the Wind Hashira Yuichirou. He was in the same final selection as Kanae and later became a traveling company of hers.
He joined the Demon Slayer Corps without telling his older brother Genya about it.
He is Sanemi's friend. He also is Sanemi's senior student and the Tsuguko of the Wind Hashira Yuichirou.
He is one of the former Water Hashira Urokodaki's students and the Tsugoku of the Water Hashira Makomo. He was very talented and had beheaded a Lower Moon within only two months after joining the Corp. Funnily enough, Sabito left for his first mission just a few days before Kanae and Shinobu's arrival at Urokodaki's place. They barely missed meeting each other.
He is the third student and the supposed Tsuguko of the Sun Hashira Tanjirou.
When he was 10, his older sister was killed by a demon while protecting him. Giyuu had snapped and killed the demon himself. The villagers did not believe in his story about demons and deemed him mentally unstable. He spent a whole year in a hospital before he was found by Nezuko. Later, she sent him to her brother, Tanjirou.
Tanjirou had sent Giyuu to Urokodaki so the boy could learn the foundation and start with Water Breathing. Giyuu had met Sabito there.
Giyuu, despite passing his final selection, felt like he did not as he was injured by the first demon and got saved by Sabito, spending the next week in a daze and not killing any demon.
He later switched from doing a demon slayer job to being a member of the Snow Mansion, helping other slayers in their recovery.
A normal slayer who was in the same final selection with Sabito and Giyuu. He doesn’t know it but both Sabito and Giyuu think of him as their friends and that he’s reliable.
He is the Tsugoku of the Flower Hashira Kanao. He was in the same final selection as Kanae.
Four years ago, Obanai was saved by the Sun Hashira Tanjirou from the Snake Demon. He was then sent to the Snow Mansion for recovery. The Flower Hashira Kanao later took him in as her student.
Obanai did not like Giyuu since he found out that the other boy, despite his talent in slaying demons, had stopped giving his all, thus disrespecting his savior, Tanjirou's efforts.
He is the younger brother and the Tsuguko of the Flame Hashira Senjurou. He was in the same final selection as Kanae and later became a traveling company of hers.
He wished to quickly become stronger to help his older brother.
He is the Tsuguko of the Thunder Hashira Zenitsu. A year ago, after escaping his Shinobi family, he was invited to join the Corps by Kiriya along with his three fiancees.
She is the Tsuguko of the former Flower Hashira Sayo. She was in the same final selection as Kanae and later became a traveling company of hers.
Two years ago, Kanroji's whole village was massacred by the new Upper Moon Number Six Kaigaku. She was saved by the former Flower Hashira Sayo who was still a Hashira at that time.
Kanroji developed a crush on Obanai after he saved her during their final selection.
She is the adopted daughter of Ayaki Rui and the former Flower Hashira Sayo. She was in the same final selection as Uzui.
Her Star Breathing style was an old style that derived from both Flame Breathing and Thunder Breathing.
Demon Slayer Corps - Current Hashiras ▼
Sun Hashira - Kamado Tanjirou (23)
Breathing Style: Sun (Water, Flame, and Wind)
Kamado Tanjirou is the current Sun Hashira and the current strongest demon slayer. He was a student of the former Water Hashira Urokodaki and the former Flame Hashira Shinjurou.
When Tanjirou was 13, his mother and siblings were killed by Muzan while his younger sister, Nezuko was turned into a demon. They encountered the Water Hashira Makomo who let them go after witnessing Nezuko's self-control despite just being turned. She also sent them to Urokodaki. Tanjirou spent a year and a half training with Urokodaki and learning the Water Breathing, and passed the final selection. After two months of being a demon slayer, Tanjirou managed to start to use the Hinokami Kagura. He caught the eyes of the former Flame Hashira Shinjurou who later taught him the Flame Breathing. The former Wind Hashira also taught Tanjirou her Wind Breathing.
A year after Tanjirou became a demon slayer, the war happened. They failed to kill Muzan and most Hashiras were killed during it. Tanjirou survived the war after killing off Akaza with Shinjurou and managed to hold off Muzan for a while. He got promoted to a Hashira after that.
Tanjirou was the one who saved the Mist Hashira Tokito Muichirou and the Wind Hashira Tokito Yuichirou when they were 11 and taught them Wind Breathing. He also was the one who saved Iguro Obanai and taught Tomioka Giyuu.
Tanjirou spent most of the time on missions and rarely socialized anymore.
Mist Hashira - Tokito Muichirou (18)
Tokito Muichirou is the current Mist Hashira. He is the younger twin brother of the Wind Hashira Yuichirou.
When he and Yuichirou were 11, they were attacked by a demon and were saved by the Sun Hashira Tanjirou. Tanjirou later taught the two of them Wind Breathing. While Yuichirou stayed with Wind Breathing, Muichirou switched to Mist Breathing as it fit him better. Both Muichirou and Yuichirou managed to become Hashiras only after 2 months of training.
Muichirou really adores and admires Tanjirou much to Yuichirou's bewilderment. Tanjirou finds this very cute as the twins remind him of his younger siblings.
Muichirou also gets along with the Devour Hashira Genya.
Wind Hashira - Tokito Yuichirou (18)
Tokito Yuichirou is the current Wind Hashira. He is the older twin brother of the Mist Hashira Muichirou. He also is the teacher of Kunemo Masachika and Shinazugawa Sanemi. Masachika is his Tsuguko.
When he and Muichirou were 11, they were attacked by a demon and were saved by the Sun Hashira Tanjirou. Tanjirou later taught the two of them Wind Breathing. While Muichirou switched to Mist Breathing, Yuichirou stayed with Wind Breathing. Both Muichirou and Yuichirou managed to become Hashiras only after 2 months of training.
Muichirou really adores and admires Tanjirou much to Yuichirou's bewilderment. Yuichirou actually also adores and admires Tanjirou but he does not show it blatantly like Muichirou. Tanjirou finds this very cute as the twins remind him of his younger siblings.
Yuichirou doesn't really like the Devour Hashira Genya both because of Muichirou liking him and his situation with his student, Sanemi.
Thunder Hashira - Agatsuma Zenitsu (21)
Agatsuma Zenitsu is the current Thunder Hashira. He was a student of the former Thunder Hashira Jigorou. He also is the teacher of Uzui Tengen who is his Tsuguko. He was in the same final selection as Kanao, Inosuke, and Genya.
During the war 8 years ago, he hadn't passed the final selection yet. After the death of his master/gramp, Zenitsu became cold and determined to avenge for him. He managed to become a Hashira with only 6 months after he passed the final selection. He is always on the hunt for his previous senior student, the new Upper Moon Number Six Kaigaku.
On one of his missions, he was paired with the Beast Hashira Hashibira Inosuke who was not a Hashira yet at that time. They encountered Nezuko and saved her. Inosuke recognized her as the Sun Hashira Tanjirou's sister. One thing led to another and Zenitsu ended up falling for Nezuko. He became lively again because of her. They kept in touch.
Zenitsu always admires and respects Tanjirou. He and Inosuke can also be called friends despite how they annoy each other.
Flower Hashira - Tsuyuri Kanao (21)
Tsuyuri Kanao is the current Flower Hashira. She was a student of the former Ice Hashira Kotoha along with the Ice Hashira Aoi. She was in the same final selection as Zenitsu, Inosuke, and Genya.
When she was little, Kanao was saved and adopted by Kotoha along with Aoi. She and Aoi consider each other as sisters. During the war 8 years ago, she hadn't passed the final selection yet. She became a Hashira a year after passing the final selection.
Kanao surprisingly got along with the Beast Hashira Inosuke. She was the one who recognized his name and him as Kotoha's missing son when he first visited the Snow Mansion.
Kanao likes and admires the Sun Hashira Tanjirou since he was the one who broke her out of her shell way back when he first met her years ago.
Iguro Obanai is her Tsuguko. He didn't know that a part of the reason she took him under her wings was because of Tanjirou asking her.
Water Hashira - Makomo (25)
Makomo is the current Water Hashira. She was a student of the former Water Hashira Urokodaki. Sabito is her Tsugoku. Makomo was the one who saved both the Kamado siblings, Tanjirou and Nezuko, and the Kochou sisters, Kanae and Shinobu.
Makomo is the oldest Hashira among the current Hashiras both in terms of age and seniority. She was the only Hashira who survived the war 8 years ago. She became a Hashira at the age of 15. It was a bit before she met the Kamado siblings.
Makomo loves and adores Tanjirou and Nezuko. She considers them her younger siblings. She gets worried about how overworked and unsociable the Sun Hashira Tanjirou is these days. She also still keeps in touch with Nezuko.
She is training Sabito to replace her soon as she feels like her health is declining fast due to her unlocking her Demon Slayer Mark during the war 8 years ago.
Beast Hashira - Hashibira Inosuke (20)
Hashibira Inosuke is the current Beast Hashira. He was the lost son of the former Ice Hashira Kotoha. He was in the same final selection as Zenitsu, Kanao, and Genya.
Inosuke grew up in the mountains, raised by wild boars. His breathing style, Beast Breathing was self-taught. During the war 8 years ago, he hadn't passed the final selection yet. It took him one year and six months to become a Hashira after he passed the final selection.
Inosuke didn't know about his mother until he visited the Snow Mansion after getting injured during a mission. It was the Flower Hashira Kanao who recognized his name to inform him about his mother.
Inosuke can be considered friends with Zenitsu and Kanao. He also feels all warmth with the Sun Hashira Tanjirou who keeps treating Inosuke kindly.
Inosuke likes to spend time with the Ice Hashira Aoi as she cooks for him, rambles about her research or tells him about his mother.
Devour Hashira - Shinazugawa Genya (21)
Breathing Style: None (Gun)
Shinazugawa Genya is the current Devour Hashira. He is the older brother of Shinazugawa Sanemi. He was a student of the former Stone Hashira Gyomei along with the former Flower Hashira Sayo. He was in the same final selection as Zenitsu, Kanao, and Inosuke.
When he was 12, he had to kill his mother who had turned into a demon and killed most of his younger siblings. His younger brother Sanemi seemed to have forgotten the whole thing as a trauma response and insisted that from the start, their family only consisted of him and Genya. They got taken in by the former Stone Hashira Gyomei with Genya as his student.
During the war 8 years ago, he hadn't passed the final selection yet. Genya became a Hashira two years ago after the former Flower Hashira Sayo retired.
Genya keeps in touch with Sayo and Nezuko whom he sometimes checks up with about his digesting demon power. Genya gets along well with the Mist Hashira Muichirou. He doesn't understand why the Wind Hashira Yuichirou seems to hate him. He didn't know about Sanemi joining the Demon Slayer Corps yet.
Genya admires and respects the Sun Hashira Tanjirou. They talked sometimes.
Flame Hashira - Rengoku Senjurou (17)
Rengoku Senjurou is the current Flame Hashira. He was the son of the former Flame Hashira Shinjurou and the older brother of Rengoku Kyoujurou. He was in the same final selection as Aoi.
Senjurou passed the final selection three years ago and became a Hashira roughly a year ago.
His younger brother Kyoujurou is Senjurou's Tsuguko. Senjurou always deems Kyoujurou more talented and better suited to inherit the Flame Hashira title than him.
Senjurou and the Ice Hashira Aoi get along well as they teamed up during their final selection.
Senjurou admires, respects, and gets along very well with the Sun Hashira Tanjirou. They usually spare as Tanjirou helps Senjurou with Flame Breathing. Senjurou considers Tanjirou as his teacher despite Tanjirou's denial.
Ice Hashira - Kanzaki Aoi (18)
Breathing Style: Ice, Water
Kanzaki Aoi is the current Ice Hashira. She was a student of the former Ice Hashira Kotoha along with the Flower Hashira Kanao. She was in the same final selection as Senjurou.
When she got orphaned at a young age, it was Kotoha who adopted her. She grew up with Kanao and considers her her sister.
Aoi passed the final selection three years ago and became a Hashira roughly six months ago.
Aoi inherits the Ice Breathing from Kotoha. Kotoha had created Ice Breathing from Flower Breathing. It cooperates with the use of poisons. Aoi also studies and researches poisons like how Kotoha used to do. She is the current owner of the Snow Mansion.
Aoi and the Flame Hashira Senjurou get along well as they teamed up during their final selection.
Aoi likes spending time with the son of her master, the Beast Hashira Inosuke. She respects and admires the Sun Hashira Tanjirou. She is worried about his overworking habit.
Demon Slayer Corps - Previous Hashiras ▼
Water - Urokodaki Sakonji
He is the former Water Hashira and the teacher of Makomo, Kamado Tanjirou, Sabito, Tomioka Giyuu, and Kochou Kanae.
Thunder - Kuwajima Jigorou (Deceased)
He is the former Thunder Hashira and the teacher of Kaigaku and Agatsuma Zenitsu. He had committed seppuku when Kaigaku became a demon 8 years ago.
Flame - Rengoku Shinjurou (Deceased)
He is the former Flame Hashira and the father of Rengoku Senjurou and Rengoku Kyoujurou. He had passed away in the war 8 years ago after receiving fatal injuries while battling the previous Upper Moon Number Three Akaza.
Stone - Himejima Gyomei (Deceased)
He is the former Stone Hashira. He also was the adopted father of Himejima Sayo and the teacher of her and Shinazugawa Genya. He had passed away in the war 8 years ago after unlocking the Demon Slayer Mark.
Ice - Hashibira Kotoha (Deceased)
She is the former Ice Hashira and the mother of Hashibira Inosuke. She also was the teacher of Tsuyuri Kanao and Kanzaki Aoi. She was the previous owner of the Snow Mansion. She had passed away in the war 8 years ago. She was killed by the Upper Moon Number Two Douma.
During the preparation for the war 8 years ago, he had worked with Lady Tamayo to create a lot of poisons that helped the slayers a lot. They did attempt to create a cure to reverse demons back to humans but didn't manage to.
Kotoha had a history with Douma and was separated from Inosuke because of him. She never had the chance to meet Inosuke again after she let him go when he was a baby.
Flower - Himejima Sayo (22)
She is the former Flower Hashira and the teacher of Kanroji Mitsuri and Ayaki Utsuki. Mitsuri is her Tsuguko while Utsuki also is her adopted daughter. She used to be the Tsuguko of the former Stone Hashira Gyomei and later became a Hashira after he passed away.
During her encounter with the new Upper Moon Number Six Kaigaku, Sayo got blinded after overusing the Flower Breathing's final form while also got seriously injured that she retired after that battle.
Sayo had unlocked her Demon Slayer Mark so she would not live passed 25.
She is married to her husband Ayaki Rui.
Sayo still kept in touch with her fellow student under Gyomei, the Devour Hashira Genya. She is worried about Genya and Sanemi a lot, and considers them as her younger siblings. She got along pretty well with the Sun Hashira Tanjirou and other Hashiras when she was still a Hashira.
She is the younger sister of the Sun Hashira Tanjirou.
When she was 10, her family besides Tanjirou got attacked by Muzan and she had been turned into a demon. Luckily, she had managed to break free from Muzan’s control. She and Tanjirou encountered the Water Hashira Makomo who let them go after witnessing Nezuko's self-control despite just being turned. She also sent them to Urokodaki.
Later, Nezuko had managed to conquer the sun. She also regained her consciousness after Muzan got weakened during the battle 8 years ago.
Because Tamayo and the previous Ice Hashira Kotoha never managed to perfect the cure that turned demons back to humans, Nezuko is still a demon. She is now traveling with Yushirou while trying to complete the cure.
Nezuko and Tanjirou had a fall-out when Nezuko talked about wanting to stay as a demon after she regained her consciousness. They rarely talked anymore. (But they still very much love each other.)
Nezuko met Zenitsu and Inosuke by coincidence after Zenitsu saved her. She also kept in touch with Zenitsu, Genya and Makomo from time to time by letters.
He always had a sorrowful aura now after Tamayo passed away during the war 8 years ago.
He currently travels with Nezuko. He and Kiriya are friends now. He usually sent messages to Kiriya to chat, Aoi for the cure's research, and Tanjirou to update him about Nezuko.
He is the husband of the former Flower Hashira Sayo and the adoptive father of Ayaki Utsuki.
When he was a child, he was very sick. It was Lady Tamayo who cured him. Thank to her, he got better and chose to become an apothecary and a herbalist. He is helping Nezuko with the cure by giving her supplies.
She had sacrificed herself during the war 8 years ago.
Demon King - Kibutsuji Muzan (Weakened)
He is the first demon and the current Demon King. However, he had gotten weakened a lot during the all-out war 8 years ago between demons and the Demon Slayer Corps. He is now trying to hide while hunting for Nezuko.
He still is the Upper Moon Number One.
He still is the Upper Moon Number Two. However, after consuming the previous Ice Hashira Hashibira Kotoha during the war, he is now slowly being killed by a special poison that Kotoha had injected into her body.
During the war 8 years ago, he had encountered the former Flame Hashira Shinjurou and Kamado Tanjirou who was a normal slayer back then. After battling with Shinjurou to death, Akaza was beheaded by Tanjirou. He later self-destructed after regaining his memory when he was a human.
She got killed by Muzan after Yushirou tried to control her during the war 8 years ago.
Hantengu - Gyokko - Gyotaro - Daki (Gone)
They all got beheaded during the war 8 years ago. Tamayo and Kotoha's poison had helped the Corps weaken them a lot.
Kaigaku was a student of the former Thunder Hashira. He became a demon a bit before the war 8 years ago. He later became the new Upper Moon Number Six.
Ever since he almost got beheaded by Zenitsu, Kaigaku grew scared of him.
Fue is the new Upper Moon Number Five. He was Uzui Tengen’s younger brother, Uzui Utaji. He did not really have his memory when he was a human but he held conflicted feelings about Uzui Tengen.