After watching the video, Joseph continued to communicate with Rengoku Kyojuro. He taught the other his Ripple Breathing method.
Similarly, to repay Joseph, Rengoku Kyojuro very consciously taught him the Flame Breathing passed down through his ancestors.
Furthermore, Rengoku Kyojuro promised Joseph that if he found Flame Breathing unsuitable, he would search for other Breathing Techniques to teach him.
Because in a sense, the Hamon/ripple Breathing Joseph had taught him was truly of vital importance.
A Breathing Technique that simulated the sun, combined with a nichirin blade—Rengoku Kyojuro did a quick mental simulation.
As long as a casual strike of his own hit a demon, it would be no different from exposing them to the midday sun; even if they didn't die, they would certainly be heavily wounded!
Though Joseph had mentioned that Hamon/ripple Breathing still depended on individual talent.
If someone couldn't learn it, they simply couldn't; there was no way around it.
However, if someone was exceptionally talented, they could join the battle after just a month of study.
At this point, Joseph boasted a bit, saying he was that kind of genius, but he had given up practicing Hamon/ripple in order to grow old together with his wife.
Otherwise, he wouldn't have aged so quickly.
Even knowing that Hamon/ripple Breathing had an 'entry threshold,' Rengoku Kyojuro didn't mind.
Because in the Demon Slayer Corps, there was also an 'entry threshold' where excellent recruits with potential were taken in by the Hashira as Disciple.
Those who lacked the potential to be swordsmen, or those who lacked the courage to fight demons, would be assigned to the Kakushi or given simple tasks.
Now that Rengoku Kyojuro had obtained Hamon/ripple Breathing from Joseph, he naturally couldn't wait to start training.
In the JoJo World on the other side, Joseph was also carefully examining the Flame Breathing sent by Rengoku Kyojuro.
Truthfully, he was quite interested in the Breathing Techniques of another world.
"I see, so this is the Breathing Technique of another world?" Joseph looked at the Flame Breathing sent by Rengoku Kyojuro and nodded slightly, commenting, "It looks quite good, but I don't use a sword, and I'm too lazy to use breathing anymore."
As he spoke, Joseph suddenly remembered that someone in his group seemed to use a 'sword' to fight.
He looked toward that person.
"What is it, Mr. Joestar?" Polnareff asked with some confusion when he saw Joseph suddenly looking at him. "Have you finished talking over there?"
"Yes, I'm finished." Joseph nodded slightly and looked at Polnareff with a smile. "I've gotten something good for you. I'll send it to you in a private chat later. It should be very useful for your Silver Chariot."
"Huh?"
Polnareff seemed a bit confused, clearly not understanding what Mr. Joestar was talking about.
However, his attention was mostly on Jotaro, who was currently 'teleporting.'
That's right, he was teleporting. Ever since watching the video, Jotaro had been training the power to 'stop time' without a moment's rest.
"Star Platinum: The World!"
As those words fell, Jotaro appeared a short distance away. He frowned slightly, clearly somewhat dissatisfied.
He had gone from stopping time for an instant to being able to stop it for one second; this progress was far too slow.
Dio certainly wouldn't give him much time to develop. To prevent the old man, Polnareff, Kakyoin, and the others from dying, he had to become stronger.
"By the way, Jotaro, are you interested in learning Hamon/ripple?" Joseph spoke up, looking at Jotaro. "If you learn Hamon/ripple, then in the world of Stopped Time, as long as you successfully touch Dio once, he's finished."
"Why didn't you say so earlier?" Jotaro said, steadying his breathing. He had been using Star Platinum: The World repeatedly, and his breath was somewhat ragged.
Jotaro's 'Why didn't you say so earlier' was naturally directed at Joseph Joestar, asking why he hadn't taught them Hamon/ripple—which could defeat Dio—sooner.
"At first, I didn't expect Dio's Stand ability to be stopping time, and the era of Hamon/ripple has passed; it's the era of Stands now."
At this point, Joseph suddenly remembered something and looked at everyone. "Why don't you all practice Hamon/ripple? It has many benefits, whether it's for dealing with Dio or slowing down aging; it's quite excellent."
"Can I learn it too?" Kakyoin Noriaki seemed a bit surprised. If he learned Hamon/ripple...
Would it be... Hamon/ripple: Hierophant Barrier?
If that were the case, would Dio be unable to get close to him? Thinking about it like that, it seemed quite good.
"Of course you can, Kakyoin." Joseph gave a thumbs-up, indicating it was perfectly fine.
Demon Slayer World.
After obtaining the Hamon/ripple Breathing Technique from Joseph, Rengoku Kyojuro no longer had time to watch the video with Tanjiro and the others. He stood up, preparing to visit Oyakata-sama.
But soon, Rengoku Kyojuro suddenly slapped his head; there was no need to visit Oyakata-sama in person when he could just use the friend function of the multiverse projection.
He sent the Hamon/ripple Breathing Technique taught by the elderly Joseph to Oyakata-sama.
Oyakata-sama, Ubuyashiki Kagaya, was blind, but the multiverse projection was a miraculous creation.
Even though Oyakata-sama was blind, he could still 'see' the existence of the multiverse projection when he had no other business.
Oyakata-sama could even rely on the multiverse projection to see the world.
Thus, Rengoku Kyojuro was truly grateful for the existence of the multiverse projection.
Because of its existence, Oyakata-sama could view the world from another perspective.
At the same time, Rengoku Kyojuro didn't forget to send Hamon/ripple Breathing to Tanjiro, Inosuke, and Agatsuma Zenitsu.
Since they were all going to train anyway, they might as well practice this Hamon/ripple Breathing Technique together before the next video started playing.
"I've sent the Hamon/ripple Breathing to you all." Rengoku Kyojuro looked at the three sitting on their infirmary beds and said excitedly, "That elderly Mr. Joseph said that Hamon/ripple Breathing can be used even when injured."
"Let's train in this brand-new Breathing Technique together!"
Rengoku Kyojuro seemed exceptionally excited, while Agatsuma Zenitsu's face fell.
Although the previous video had fired him up, with the 'good medicine is bitter' effect, the hot blood in his body had already vanished!!!
He didn't want to learn any brand-new Breathing Technique; Thunder Breathing was already hard enough to learn, and he didn't want to learn any others.
"Okay!"
Tanjiro was the first to respond.
And as soon as Inosuke heard the word 'training,' he also nodded frantically, indicating he wanted to learn.
He wanted to become strong! Very, very strong! As strong as the people in the video!
Just as they were about to start practicing, light flickered on the black screen once more.