[Breath of the Sun] could not learn, which was indeed beyond Senjuro's expectations.

In fact, it's not that he can't learn, and the power of the system can indeed be forcibly mastered, but it's hard to say what the end will be.

It seems that the mastery of this root breathing method requires special conditions, is it bloodline, or something else?

Shaking his head with a wry smile, although Senjuro was a little disappointed, he didn't particularly care.

Whether it is the [Breath of the Sun] or the fact that he has now reached the Grandmaster-level [Breath of Fire], in the end it is just someone else's path, and for Senjuro, it is the most important thing to go out on his own path.

Of course, that's true, but it's also very important to embrace all rivers and absorb the essence of each genre on the way to find the way.

Although he can't learn the [Breath of the Sun], his various types of sword skills are still very meaningful for Senjuro.

……

The sun sets in the west.

After exercising for most of the day, the three of them returned to the hospital room of the butterfly house exhausted.

During the trip to the Infinity Train, all three were injured, and although they have largely recovered now, follow-up rehabilitation is still inevitable.

Lying on the rattan chair, looking at the backs of the three of them leaving, Senjuro had no intention of getting up, but quietly watched the sunset sinking in the west, with a lot of thoughts in his head.

The promotion of [Breath of Fire] to the Grandmaster level not only brings an increase in power and three additional skills, but more importantly, a deeper understanding of kendo.

In the past few days in Butterfly House, Senjuro did not rush to daily tempering, but spent most of his time pondering swordsmanship.

Looking back at the original "Breath of Fire, Type Ten, Blazing Shura" and "Breath of Flame, Type Eleven, Flame Blade" created by him from the perspective of his Grandmaster Realm at this moment, some major flaws in the details are vividly visible.

In the final analysis, "Breath of Fire, Type Ten, Blazing Asura" is to completely expel the flames from the body, and forcibly restrain it with spiritual power and construct it into a special armor form, so as to bring a high increase in physical attributes.

But this method has great drawbacks.

That is, the fugitive effect of the elements. This is a microscopic elemental reaction that was discovered only after Senjuro's spiritual power broke through and reached the "transparent world".

The elements produced by the human body, whether it is fire, water, or even other elements, will inevitably escape when faced with the endless sea of elements in nature. In the same way, the elements contained in the human body are fine in the body, and there is a physical barrier, and this escape phenomenon is suppressed to an extremely weak extent.

However, once the elements are separated from the physical body and exposed to the natural world, even if they are bound by spiritual power, they will continue to lose until they disappear completely in the face of the immeasurable sea of natural elements.

The speed at which it disappears, according to Senjuro's experiment, only takes half an hour at most.

In other words, no matter how strong Chijuro's spiritual power becomes, unless it can resist the adsorption force of the Elemental Sea, the "Blazing Shura" can only last for 15 minutes at most.

When the fire element is less than half, it is impossible to maintain the basic structure of the "Blazing Asura".

And now, can he resist the adsorption of the endless elemental sea? The answer, of course, is no.

Fifteen minutes, that's still on the bright side.

In actual combat, this time will only be shorter due to the need to spend mental energy to observe the enemy's movements.

This is a very unfavorable thing for Senjuro.

After both the mental and physical attributes broke through 35 points, there was almost no pressure on him to maintain the state of "Blazing Shura", and if it weren't for the elemental escape effect, he could have driven the "Blazing Shura" almost all day long.

It's a pity that now I can only think about it.

The elemental fugitive effect is doomed to be unrealizable.

The root of the problem has been found, and how to solve it is something that Senjuro needs to think about now.

And his greatest hope is placed on [Technique-Fire].

After slaying the Nest, the system rewarded [Pure Blood (Essence III)], although all the attributes of Senjuro exceeded 35 points at that time, resulting in the effect of increasing the attributes of this item completely ineffective, but this is still very significant for another effect - the incomplete technique.

After swallowing [Pure Blood (Essence II)] and [Pure Blood (Essence III)], [Technique-Fire (Remnant)] was completely completed, and the word "remnant" in the suffix disappeared.

This gave Senjurou a completely different feeling.

If in the past, when the technique was used to generate flames in the body, it was one drop at a time, but now, it is dozens of drops and dozens of drops coming out, and the generation speed is very different.

The emergence of this situation gave Senjuro a bold idea.

Since the fire element that is repelled into the body will inevitably escape, can the flame generated by the technique be used to fill the fire element that escapes?

It's a beautiful idea, but it's a lot of tricks to do.

Normally, with full attention, several experiments can always succeed, but in the fierce battle with evil spirits, it is almost impossible to distract yourself from manipulating the fire element to fill the armor of the "Blazing Asura".

So, we need to find a different way.

In the final analysis, "Blazing Shura" is just a special attribute amplifier with a special structure, and if it can replace its role in other ways, won't it be able to solve the problem directly?

In this regard, the additional skill of the Grandmaster-level [Breath of Fire], [Marbles], gave him a lot of inspiration.

Although he did not choose to open the markings, through the observation of the Kyojurou markings, Senjuro has a general understanding of this special human body pattern.

The effect of the markings is to greatly increase the physical attributes and resistance to abnormal states, and this improvement is achieved at the cost of consuming a huge amount of life force.

In terms of its effect, it is actually not much different from "Blazing Shura".

So, if we can find energy that replaces life force to construct the markings, can we open the markings without side effects to replace the "Blazing Shura"?

And can the flame produced by the technique replace the life force?

This idea intrigued Chijuro, and he had been testing the possibility of realization during this time.

However, due to his lack of thorough understanding of the markings, especially the changes in the elements in the swordsman's body when the markings are opened, he has not been able to figure out what he has not succeeded.

To succeed, he had to watch the whole process of opening the markings live.

And hope lies in the other pillars.

According to the surviving records of the Demon Slayer, the opening of the markings is "contagious", and once the first one to open the markings appears, it will be easier for the surrounding swordsmen who have reached the standard of strength to open the markings.

Combined with the upcoming Ghost Slayer Pillar Guidance Training, a very interesting idea came to Chijuro's mind.

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