The revolving lantern phenomenon refers to the memories of the past flashing through a person's mind when they are about to die.
In the story, Tanjirou triggered it multiple times, and even Nezuko triggered it once.
Mizuki also had a similar experience once, and at the time, she even joked, "Is this a tradition of Demon Slayer?"
How could she also trigger the revolving lantern phenomenon?
Because the situation at the time was dangerous enough, and it was when she awakened her Demon Slayer Mark, Mizuki remembered it quite clearly.
Although she saw the appearances of her two elder brothers at the time, she later learned from asking Yoriichi that Yoriichi actually had no idea what she was good at.
Therefore, the revolving lantern phenomenon is just a scene from a person's subconscious.
But here comes the problem again.
In the Demon Slayer worldview, ghosts truly exist.
The original plot relied on the revolving lantern phenomenon to trigger a power-up and complete a counter-kill. Now that she saved the person, who knows what would happen if it couldn't be triggered?
Just in case, Mizuki immediately began teaching Tanjirou the cultivation of Constant Concentration and Sun Breathing, to prevent a situation where he couldn't cheat/power-up.
However, Mizuki was not impatient for quick results, as Constant Concentration is not something that can be mastered quickly; it requires accumulation.
Just maintaining Constant Concentration while sleeping is not something that can be achieved in a day or two.
"It is difficult to ask you to change your breathing habits right after mastering Water Breathing, but the Hinokami Kagura Dance is not unfamiliar to you, so I believe this transition process will be smooth."
Tanjirou nodded solemnly: "I will work hard!"
A strange breathing sound echoed from his mouth, and Tanjirou's face looked strained and uncomfortable.
Just maintaining the state of Total Concentration Breathing was agonizing for him.
The breathing method of Hinokami Kagura was even more painful than Water Breathing.
The Demon Slayers of the Demon Slayer Corps fight the demons using their own lives.
The principle of the Breathing Technique is to expand the lungs, allowing more oxygen into the blood, thereby effectively stimulating muscles and bones to achieve the goal of enhancing physical strength.
Total Concentration Breathing and Constant Concentration, however, stimulate the body to the maximum extent, even maintaining that state continuously.
The ordinary use of the Breathing Technique is indeed beneficial to health, but starting from Total Concentration Breathing, it constantly increases the burden on the body.
This is also why most Demon Slayer Corps swordsmen have had their families destroyed by Muzan.
Because without enough hatred, it is difficult to maintain this conviction.
"Sun Breathing, First Form: Circle Haze!" Tanjirou held the sword with both hands, stepped forward, and swung his arms with force, unleashing a circular slash wrapped in orange-red flames.
It truly is exhausting!
My lungs hurt so much!
A slight cold sweat seeped from Tanjirou's temples.
But at the same time, he genuinely understood what Mizuki meant by saying it was more suitable for him.
It's too powerful.
It's much stronger than Water Breathing.
Although thinking this way felt disrespectful to Urokodaki-sensei, he truly felt the difference.
Mizuki stepped forward and slightly raised Tanjirou's hands: "Raise your hands a little higher, and your footwork is too stiff."
Hinokami Kagura is Sun Breathing, and the essence of the Breathing Technique has been passed down through the Kamado Family for generations.
I have to say, Sumiyoshi was truly a genius; he memorized all the Sword Forms just by watching them once.
But since it had been passed down for hundreds of years, it was inevitable that slight differences would appear during the transmission process.
The angle of the wrists, the footwork, the intervals between breaths, and so on—all had slight issues, preventing the full power of Sun Breathing from being unleashed.
Fortunately, Sun Breathing was also one of the Breathing Techniques Mizuki excelled at, allowing her to gradually correct Tanjirou's mistakes.
"Yes!" Tanjirou replied, full of vigor.
He actually wanted to ask why Miss Mizuki knew so much about Hinokami Kagura and called it Sun Breathing.
If Mizuki hadn't pointed it out, he wouldn't have connected Hinokami Kagura with a Breathing Technique.
But Miss Mizuki must have her reasons for not speaking up.
Mizuki nodded slightly, "Hmm, full of spirit."
She actually wasn't very good at handling such energetic types.
Because her own personality was the exact opposite.
Tanjirou practiced the Sun Breathing Sword Forms in the open space while struggling to maintain Constant Concentration.
This was difficult training, but his growth was visible to the naked eye.
"I never imagined... it was the legendary Origin Breathing." Urokodaki Sakonji had appeared beside Mizuki at some point, watching Tanjirou's struggling figure, and sighed with emotion.
"It is indeed very powerful."
He was much stronger than Tanjirou using the Water Breathing Sword Forms. Urokodaki Sakonji no longer doubted that he could successfully pass the Final Selection.
In his estimation, Tanjirou's current strength was enough to reach at least the Kinoe or Kinoto rank in the Demon Slayer Corps.
Urokodaki Sakonji couldn't help but wonder if he had held the child back.
Mizuki seemed to read his mind and shook her head, saying, "It's simply because Sun Breathing suits Tanjirou better."
"The Breathing Technique that suits you is the strongest."
This was, of course, just a comforting remark, because the truth was that, when dealing with demons, Sun Breathing was indeed stronger than other breathings.
If it were about slaying humans, she thought Moon Breathing would be even better.
"If Urokodaki-sensei hadn't laid a good foundation for him, he wouldn't be able to use Sun Breathing so easily."
Urokodaki Sakonji wore a mask, so his expression was hidden.
Since seeing the souls of Sabito, Makomo, and the other children he had taught that day, Mizuki felt that the heavy burden on the old man's shoulders had lightened considerably.
They probably didn't tell Urokodaki-sensei the truth about the Final Selection, or the old man would definitely fall into self-reproach... In the following days, Urokodaki Sakonji never went up the mountain again, entrusting Tanjirou entirely to Mizuki's guidance until the Final Selection arrived.
"You still cannot use Sun Breathing for extended periods. It is best to use it as a trump card, but remember not to forcibly switch Breathing Techniques mid-breath."
"Passing the Final Selection with your current ability is not difficult; what's important is your mindset."
Mizuki gave him some instructions.
Without realizing it, she had also become the nagging, verbose type.
Tanjirou nodded seriously: "I understand."
..."Tanjirou."
"Miss Mizuki?"
Mizuki said abruptly, "You should know my identity by now, shouldn't you?"
"...Yes." Tanjirou hesitated for a moment and nodded.
Mizuki smiled faintly: "That's right, I am the same as Nezuko."
The aura of a demon and a human are completely different. Even Nezuko, who hasn't eaten people, has a vastly different aura than before.
Dealing with ordinary people was fine, but for someone with an exceptionally keen sense of smell like Tanjirou, coupled with Mizuki's small appetite, it definitely couldn't be concealed long-term.
Moreover, Urokodaki-sensei must also know. That old man, like Tanjirou, has a keen sense of smell.
He just hadn't said anything.
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