Invincible in the world, starting with the ghost curse

There were people of different appearances sitting or lying on several carts, and some of them were pulling the carts. They were none other than Seiichi Kamiya and his group who were returning to the Demon Slayer Corps headquarters.

The early morning sun was warm and gentle, but not scorching. The trees on both sides of the road were lush and leafy, and the dew on the green leaves was crystal clear. From time to time, the stars in the sky sprinkled down, and a few drops merged together. The leaves bent down under the weight, and huge water droplets fell.

Zenitsu, who was still sleeping soundly, was hit in the face by water droplets. He sat up in shock, looked around blankly, and fell asleep again.

"Mr. Kamiya, we still have some time to go before we get to the headquarters. Let me tell you something about the Demon Slayer Corps."

Tanjiro came to Kamiya Seiichi's cart and sat cross-legged.

Kamiya Seiichi looked at the young man. He was cheerful and cheerful at the moment, but he had no idea that a future filled with suffering awaited him. However, since he had come to this world, he naturally would not let the tragedy unfold as the original script had.

"Tell me, I'm also interested in ghosts and the Demon Slayer Corps."

"Mr. Kamiya, the Demon Slayer Corps was created specifically to hunt demons. Because Muzan Kibutsuji could transform people into man-eating demons, causing countless tragedies, the grieving people spontaneously organized themselves to hunt demons and protect ordinary people. Therefore, most members of the Demon Slayer Corps have tragic pasts."

Tanjiro told the story slowly, gesturing with his hands from time to time to make it easier for Kamiya Seiichi to understand.

"Lord Ubuyashiki is the lord of the Demon Slayer Corps. He is a wise and open-minded man. He organizes the Demon Slayer Corps to resist the invasion of evil spirits and protects the members of the Demon Slayer Corps. To him, everyone in the Demon Slayer Corps is like his own children."

Tanjiro thought again of the young man who was plagued by illness, gentle and wise.

"The Demon Slayer Corps is mainly divided into six major departments: the head, the pillar, the soldiers (divided into ten classes), the hermit, the trainers, and the swordsmiths. The hermit are sending us back now. They are very powerful and are responsible for everyone's daily life and aftermath. The trainers are the swordsmen's teachers, responsible for teaching everyone breathing techniques. They used to be very strong swordsmen. My water breathing was taught by Mr. Urokodaki. He is a very good person!"

"The swordsmith is responsible for crafting your Nichirin sword. Mr. Kamiya has always lacked a good sword. I believe that with the swordsmith's skills, he can definitely craft a good sword that will satisfy you!"

Speaking of this, Tanjiro paused for a moment, and he suddenly realized that he seemed to have damaged the sword again, and many irreparable gaps appeared on the blade. Thinking of the horror of the Iron Mound, his face suddenly drooped and he looked bitter.

“I do need a good knife.”

Kamiya Seiichi said in agreement.

"By the way, can you tell me about breathing techniques?"

"Breathing techniques? I practiced Water Breathing, but I don't think I'm quite attuned to it. Hehe, Fire God Kagura is the dance my father performed as a ritual. It's said to be related to Sun Breathing, but I'm not entirely sure."

Tanjiro inhaled gently, air rushing into his nostrils and mouth. Kamiya Seiichi felt the surrounding environment gradually become humid, a light mist filling the air. Then, Tanjiro exhaled deeply, took a moment to regulate his breathing, and inhaled again. Unlike before, the air this time gradually became hotter and hotter.

"Mr. Kamiya, these are the Breathing of Water and the Breathing of Fire. I don't understand the others. Zenitsu's is the Breathing of Thunder, and Inosuke's is the Breathing of Beasts. Beast Breathing is a breathing method created by Inosuke himself. There are also derived breathing methods, such as Mr. Uzui's Breathing of Sound, which is a derivative of the Breathing of Thunder. Anyway, there are many kinds of breathing methods. Mr. Kamiya should be a breathing method created by himself like Inosuke."

Tanjiro rubbed the back of his head and smiled sheepishly.

"Thank you, Tanjiro. Call me Seiichi from now on. I'm about the same age as you."

Seiichi Kamiya blinked mischievously.

"Eh!?" Tanjiro almost jumped up.

"Eh!?" Zenitsu, who was sleeping next to him, jumped up.

Although Kamiya Seiichi is young, he has been well-nourished in modern society and has been exercising regularly, so he has grown to 175cm tall, half a head taller than Tanjiro and the others. He also has a mature demeanor, a handsome and elegant demeanor, and a look of the vicissitudes of a wandering samurai, so Tanjiro and the others were impressed from the beginning.

Kamiya Seiichi smiled. Actually, they were right. Although Kamiya Seiichi's body was only 15 years old, his soul was a time traveler after all, and he was already nearly 30 years old, so he naturally had the maturity of an adult.

"It seems you are also a genius."

Uzui Tengen in the front row turned around.

"Also?" Zenitsu screamed.

"There's a guy in the Demon Slayer Corps who became a Pillar after only holding a sword for two months, and he's only 14 years old."

"He is the Kasumi-Muichiro Tokito." Tengen Uzui picked up a fruit and put it into his mouth.

"Now that I've said that, let me tell you about the pillars of the team. We'll be your comrades fighting side by side from now on."

Kamiya Seiyi nodded.

"The current Demon Slayer Corps has a total of 8 pillars, namely: Insect Pillar Shinobu Kocho, Cloud Pillar Muichiro Tokito, Snake Pillar Iguro Obanai, Love Pillar Mitsuri Kanroji, Rock Pillar Gyoumei Hirumi, myself, Water Pillar Giyu Tomioka, and Wind Pillar Mushiya Fushigawa."

Uzui Tengen paused, and tears welled up in Tanjiro's eyes.

"And there's also the Flame Pillar Rengoku Kyojuro who died some time ago."

Seiichi Kamiya sighed. He had indeed arrived too late, and there were many things that could not be changed, but he had also not arrived too late, and there were still many things that could be changed.

Since he has come to this world, if he does not leave something for this world and does not change anything, it would be disloyal to his Tao heart and sword heart.

“If you have regrets, change them.”

Kamiya Seiichi thought to himself.

"That's about it. As for the rest, you should be able to find out when you get to headquarters. By the way, as a pillar, you can adopt a son to pass on your skills."

Uzui Tengen added another sentence.

"I see. I'm already looking forward to meeting new friends. Mr. Uzui, could you share some experiences on breathing techniques?"

After the casual chat, Seiichi Kamiya is going to start communicating with the kendo masters. Only by verifying each other can there be growth. Working in isolation will only lead to self-destruction.

"Okay." Uzui Tengen laughed.

Kamiya Seiichi began to discuss swordsmanship with Uzui Tengen, while Tanjiro and Inosuke listened beside them. Zenitsu was still lying down, but the shaking of his ears showed that he was also listening carefully.

“Open the panel.”

Name: Seiichi Kamiya

Strength: First level

Spiritual power: 150/150

Basic skills: Japanese proficiency (750/7500), basic swordsmanship - superb (6000/50000)

超凡能力：呼吸法—常中（863/1000）、水之呼吸—入门（10/100）、音之呼吸—入门（10/100）、日之呼吸—入门（?/1000）

Temporary Talent: Almost Tao

Evaluation: First-level ordinary!!!

After a battle, Kamiya Seiichi's strength is about to reach a new level!