"Ah—"
"The history of Flame Breathing is very long, but Hinokami Kagura, I truly haven't heard of it. It's a good thing your father's Kagura Dance can be used in combat, but this topic can only go so far!"
"Um~ can you say a few more words?"
"Become my Tsuguko. I will look after you~"
"..."
When you talk to Tanjiro, where are you looking?
Next, Kyojuro Rengoku began to explain the origin of Breathing Techniques. The most primitive and earliest Breathing Techniques were divided into five major attributes.
They are Flame, Water, Thunder, Wind, and Stone. Later, many geniuses, based on their own compatibility, improved and invented many derivative Breathing Techniques.
The derivative of Flame Breathing is Love Breathing, while the derivatives of Water Breathing are Flower, Insect, and Serpent Breathing. The derivative of Thunder Breathing is Sound Breathing, and the derivative of Wind Breathing is Mist Breathing. [It's like the major Chakra attributes in the Ninja World,] Uchiha Nagi thought to himself.
In the Ninja World, besides the five basic attributes, there are also higher ones, which are Yin and Yang attributes. For example, Shikamaru's family's Shadow Imitation Technique is a type of Yin Release, and Choji's family's secret technique is a type of Yang Release.
The Breathing Techniques are Moon Breathing and Sun Breathing. Although Moon Breathing was derived by referencing Sun Breathing, there is actually no distinction between stronger or weaker. The difference is merely that the founder of Sun Breathing possessed overwhelmingly powerful swordsmanship, which created a false impression.
"What color are your nichirin blades?" Kyojuro Rengoku asked curiously.
Tanjiro said, "Mine is black~"
Inosuke said, "Mine is dark blue~"
Zenitsu said, "Mine is gold~"
Uchiha Nagi didn't speak, he just drew his nichirin blade for them to see.
"Oh That's great, the same color as mine! In that case, all of you come and train with me. I will teach you well, hahahaha"
Seeing that Uchiha Nagi's blade was the same color as his, Kyojuro Rengoku couldn't help but be greatly excited. A new member with the same attribute, and crucially, one who became a Pillar like Muichiro right away—powerful and from the same school—made him uncontrollably happy.
He was even happier than taking on three Tsuguko. Although his personality was eccentric, he was generous, cheerful, and passionate, with a fiery personality. He was indeed the person recognized as "Big Brother" by the Demon Slayer Corps.
Tanjiro blinked. In his special sense of smell, if Uchiha Nagi's scent was the cold ice of summer, then the Flame Pillar's scent was the flame of winter.
"Be careful, there's a demon hidden in this train. Don't be careless…" Uchiha Nagi interjected.
"Ah~~ There's a demon! I want to get off the train, I want to get off…" As soon as he heard there was a demon, Zenitsu's cowardly nature flared up again, and he struggled to jump out the window.
"You bastard, stay put! What's there to be afraid of with Inosuke the Great here~" Inosuke roared in anger, casually grabbing Zenitsu to stop him from running.
Before, Zenitsu held him; now, he held Zenitsu—
"I don't want to, I want to get off the train, I'm scared Wuwu~" Zenitsu's tears and snot flowed down.
"Dear passengers, please present your tickets."
A ticket inspector walked around, checking tickets for the surrounding people.
Sniff sniff~
"There's an ominous scent~" Tanjiro suddenly smelled something strange.
Then, in the next second, the surrounding people began to fall asleep, entering a deep slumber, including Kyojuro Rengoku and Uchiha Nagi.
— — — —
"Be careful, an enemy has arrived~" Kyojuro Rengoku suddenly stood up and drew his nichirin blade.
"Such a large body, yet it can hide. Is it a Blood Demon Art?"
At this moment, a gigantic figure with a head full of eyes suddenly appeared, crawling on the train roof like a spider, with several limbs gripping firmly to the roof.
"Roar—" The big-eyed spider-man roared, opening its mouth full of fangs.
"Flame Breathing. First Form. Unknowing Fire~"
A flash of flame passed by. Before the opponent could react, its head had already rolled to the ground, and its body began to burn to ashes—
"So amazing, Big Brother, take me as your disciple" Tanjiro hugged his leg. "Me too, me too" Zenitsu cried with tears streaming down his face.
"I want to too~" Inosuke was excited.
"Big Brother, you're my Big Brother from now on. I'll follow you." Uchiha Nagi said tearfully.
"Hahahaha, all right, all right, I'll take you all as my disciples—" Kyojuro Rengoku laughed heartily.
— — — —
"This is? Modern times?" Uchiha Nagi looked at his familiar world with emotion.
At this moment, he was in a modern metropolis. The streets were bustling with people everywhere, and on the overpass of a main road, a large crowd was queuing to cross the bridge.
This was the center of a super-first-tier city in his previous life. After crossing the overpass, there was a main road leading to the shopping street inside. Outside the main road were several pillars with words written on them: [East Gate Pedestrian Street].
When Uchiha Nagi entered this world, he already knew his situation. Mangekyo was the ancestor of genjutsu, he just didn't know how the opponent brought him into the genjutsu.
Because too many years had passed since his transmigration, many memories were already blurry, only the general outline remained.
However, after entering this mental world, Uchiha Nagi was not in a hurry to leave. Instead, he enthusiastically started window shopping, because in his previous life, after the internet developed, he no longer saw such crowded scenes.
"What a distant memory, even I can't recall this scene anymore." Uchiha Nagi sighed.
"Nine ninety-nine, nine ninety-nine, special offer clothes, nine ninety-nine a piece, don't miss it as you pass by~"
"Handsome guy, come in and take a look, the latest running shoes are 50% off and buy one get one free~"
After walking into the pedestrian street, the shops on both sides had young and simple girls waving megaphones. They stood boldly and enthusiastically at the entrances of various shops, waving their hands to attract customers to their clothing stores.
The people around looked curiously at Uchiha Nagi, this person in ancient attire.
Uchiha Nagi, with some interest, walked into a sportswear store, bought a set of clothes, and changed out of his anachronistic outfit.
After coming out, he walked to a snack street, Dongmen Town Food Street… A short while later, he was satisfied, holding a large skewer of squid in his left hand and several bags of grilled meat and chicken wings in his right, his mouth greasy from eating.
"Although I can barely remember it, and it tastes just so-so, the taste of my hometown is just so delicious, hehe~"
Uchiha Nagi suddenly remembered something, and blinked, "Oh right, since I'm here, I might as well experience some games."
With that, Uchiha Nagi rushed towards an arcade. Before he even entered, he heard many deafening sounds.
This kind of arcade had gradually been phased out later due to the advancement of various games. Basically, the remaining arcade machines were mostly dancing, basketball, or fishing games. Now, in this dream world, the arcade was neatly arranged with various arcade games, including King of Fighters 97, Cadillacs and Dinosaurs, Romance of the Three Kingdoms…