Tanjiro, Nezuko, Zenitsu and Inosuke all board the Mugen Train for their mission to accompany the Flame Hashira Kyojuro Rengoku. Inosuke was ecstatic this was his first time riding a train so this was all new and exciting for him.
Inosuke couldn't contain his excitement and started interrupting the other passengers on the train which earned him a scolding from Tanjiro.
'Inosuke i know you're excited but stop acting like a child and disturbing to other passengers' said Tanjiro, the maroon Demon Slayer was also excited for this was also his and his sister's first time riding a train but they contained their excitement unlike Inosuke. Zenitsu was also quite annoyed with Inosuke's behavior.
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It wasn't hard for them to find the Flame Hashira. As they were entering another train car, they heard a man shouting Umai!. They followed the voice and it lead them to a man with a fiery appearance with red eyes and blond hair with red highlights and a white haori with red flame patterns. Tanjiro recognized him from the day that he and Nezuko gave their report on what happened on MOUNT NATAGUMO. Kyojuro ignored them as he was happily eating, but Tanjiro and Nezuko still bowed and Tanjiro formally introduced himself and his sister and comrades. Once Kyojuro finished his meal, he finally turned his attention to the teenagers in front of him and said.
'Tanjiro!, Nezuko! its good to see you again!' Kyojuro was happy to see the Tsugikuni siblings again he was so impressed by them back at the Hashira meeting and he hoped to take them in and make them his Tsugukos. As Zenitsu was trying to control Inosuke's antics, Tanjiro and Nezuko were having a conversation with Kyojuro. When the Flame Hashira asked them why they are on the train, they responded by saying that they have received word from a Kasugai Crow to accompany him.
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'In our family we have this tradition, every new years eve my grandfather would preform a dance called The Hinokami Kagura,i was wondering if you have heard about it before?' Tanjiro asked hoping that the Flame Hashira might give him some information but unfortunately Kyojuro did have any knowledge about it either.
'Your grandfather must have been a great warrior' said Kyojuro praising Tanjiro's grandfather for his skill in battle.
'But our grandfather wasn't a demon slayer...he was a humble charcoal burner' said Tanjiro.
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Kyojuro declared that Tanjiro and Nezuko should become his Tsugukos, Kyojuro then went on to talk about the long history of Flame Breathing and explained how their has always been a Flame Hashira and a Water Hashira in the Demon Slayer Corps and explained the five fundamental breathing forms, Flame, Water, Thunder and Stone, and how other forms were derived from them, Kyojuro then asked the siblings what color are their Nichirin Katanas. Tanjiro said that his is a beautiful purple Katana that resembled the night sky, while Nezuko said that her's is a black Katana.
'I inherited my Nichirin Katana from my father and mentor, he taught me Moonbreathing a breathing style that he created himself long ago.' said Tanjiro.
'Was your father a Demon Slayer or came from a family of Demon Slayers?' asked Kyojuro, since that was the only way that Tanjiro could have inherited a Nichirin blade, he also never heard of Moonbreathing.

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