"Tanjiro-kun!"
Mitsuri waved to Tanjiro, who had just arrived. Tanjiro waved back.
"I knew you would be called over. Have you already passed Himejima-san's training?"
"Thanks to Mitsuri-san, I've completed everything!"
Unlike in the original timeline where his training only finished on the last day, Tanjiro's strength was now far beyond what it used to be. The scar on his forehead had already become the shape of a Demon Slayer Mark and would not fade. He had already completed all the Hashira training ahead of schedule.
Zenitsu and Inosuke also came over. Zenitsu's expression was as calm as water, while Inosuke was still full of excitement.
Because of Seiichi's presence, Muzan would still need some time to arrive. But if he dared to come now, Seiichi would be very welcoming.
Once everyone had gathered, Seiichi's ice-blue eyes scanned the group and counted them.
All the Hashira led by Stone Hashira Himejima, the three youngsters led by Tanjiro-kun, and the Tsuguko led by Kanao-chan.
Nodding, Seiichi began to speak.
"Everyone, I am very pleased to see you all here today, because this means that everyone present is the strongest group in our Demon Slayer Corps. You are also the ones with the most hope of killing Muzan Kibutsuji."
"Among you, there are Hashira, rookies, and Tsuguko. However, here, at least to me, you are all the same. I will not show you mercy or relax because of your status. This would be irresponsible to everyone! And it would be a disregard for Muzan Kibutsuji!"
His eyes narrowed slightly, and his tied-up hair moved without wind, his clothes rustling.
"Starting today, I will conduct a five-day training session for everyone. The training content: Demon Slayer Mark! Red Nichirin Sword! Transparent World!"
"Everyone already knows the power of the Mark, but you should also know its huge side effects. Power gained by burning life is ominous. I know that everyone has a deep blood feud with demons and does not care about their own lives."
Pausing, Seiichi slowly spoke.
"However, I do not wish for any of you to die before even seeing Muzan Kibutsuji."
"Therefore! I will not specifically conduct training for activating the Mark, but rather give you opportunities during the other two items. If you activate the Mark, then that is your fate."
Seiichi looked at the group of people in front of him, nodded, and said, "First step, pressure test."
The sky seemed to collapse! The dust in the air was heavily pressed to the ground, and immense fear and pressure made everyone unable to move. The ground they stood on seemed as if it would be trampled into pits.
This was not on the same level as the previous training!
Tanjiro's bones creaked, and his face was as red as blood. So strong, Seiichi-san!
That's right, this was King-level pressure, or rather, it was stronger than King-level pressure. This was Seiichi's full-power aura.
If an ordinary person stood here, they would be directly crushed unconscious.
The first to pant heavily were Shinobu and Kanao, then Genya, Zenitsu, Tanjiro, Muichiro, Obanai, followed by Inosuke, Giyu, Sanemi, Mitsuri, and Tengen.
As for Himejima, only a few drops of sweat appeared on his forehead.
This did not represent strength. It only represented the ranking of their muscle strength.
Himejima has such a strong physique. This must have reached the level of Essence 8.
Seiichi couldn't help but praise internally.
"Please draw your swords."
Tanjiro tremblingly drew his Nichirin Sword, the blade trembling slightly. Everyone else was the same. Shinobu had the most difficulty, almost unable to draw her blade. Himejima was the most relaxed, holding his flail as steady as a mountain.
"Immerse your mind into your sword."
Everyone did as told.
"The so-called Red Nichirin Sword is a technique that continuously raises the blade's temperature until the entire sword glows red. It contains the utmost positive and rigid power of the sun, which can greatly slow down the speed at which demons recover after being injured. Moreover, it can increase your attack power and penetration."
"There are multiple ways to activate it. First, hold it with immense force, using your powerful strength to heat the blade. Second, infect the blade with your own body temperature to heat it. This method is exclusive to Mark swordsmen. Third, friction between two blades generates heat. If there are two swordsmen, they can rub their swords together to quickly heat them."
"What we are going to try now is the first method, holding it with immense force!"
A very powerful technique. The ability to suppress regeneration speed is simply a natural counter to demons.
Everyone thought the same thing.
Shinobu was already drenched in sweat, pressing her pink lips together and gritting her teeth to persevere.
Himejima's hammer had already begun to turn red, but the temperature rise was very slow.
"That's the wrong method. Gently vibrate it this way."
Seiichi placed his hands on Himejima hands that were holding the weapon. Himejima immediately felt a huge force vibrating his weapon at high speed.
"Namu!"
Following suit, the flail rapidly heated up.
"Just try a few more times, Himejima. Your talent in strength far exceeds that of ordinary people."
Then, the swords of Zenitsu, Tengen, and Sanemi also produced a faint red glow.
"Alright, that's enough!"
The pressure instantly withdrew, and everyone felt their bodies lighten, as if they were about to float into the sky.
Shinobu almost couldn't stand, and Kanao supported her. Seiichi also handed her a handkerchief, and in her resentful gaze, he continued speaking.
"Under pressure, it is easier for everyone to immerse their minds. But without my deliberate help, entering that state again will require everyone to carefully explore."
"Every morning from now on, I will conduct this process once. Everyone can perceive if they can master the Red Nichirin Sword through the method of immense force. After all, this is the best method, and it can be done without a Mark."
"Next is the method exclusive to Mark swordsmen. Tanjiro-kun, come here."
He beckoned, calling Tanjiro to the front.
"Everyone observe carefully and remember it. You may also activate your Mark in battle later. If you cannot learn the first method, then you can use this method after activating your Mark."
Seiichi held Tanjiro's hand gripping the sword.
"Tanjiro, exert force, feel the Mark on your forehead, and let your body temperature rise."
Tanjiro exerted force with both hands. The flame Mark on his forehead began to burn, and his body temperature rapidly rose.
"A little higher, good, just like that."
The Nichirin Sword slowly turned red, from light red to deep red, finally completely forming a crimson color.
Muichiro and Mitsuri , who were watching, also started to try and got the same result.
Everyone noted down the details.
"It is important to note that this is a shortcut, so it cannot significantly increase attack power and penetration. It only retains the ability to suppress regeneration speed."
"That's enough!"
Nodding, Seiichi grouped them.
"Shinobu, Kanao, and Inosuke. Giyu and Tanjiro. Sanemi, Muichiro, and Genya. Obanai and Mitsuri. Himejima and Zenitsu."
"The methods are all the same. Grouping is just to help everyone cultivate better. If you encounter people from other groups later, the method of rubbing two swords together is the same."
"The third Red Nichirin Sword training begins now!"