"What about the fourth layer?" Su Mu was silent for a long time before suddenly asking.

"Originally, the Sword Heart Theory was put forward by a swordsmanship master of the previous dynasty, and at that time, it was only said that there were only three levels of realm. And then the fourth layer is made by a sword wizard you also know to build on his innovations. ”

"Could it be that it is Taibai Sword Immortal?" Su Mu had the impression that the most powerful swordsman in the world was Taibai.

"It's too white. Wang Shi nodded and said. "This fourth level realm was created by Taibai, and it was also named after Taibai, just like the immortal realm that has no ancients in the same true qi cultivation. ”

"This fourth layer is called the One Sword Period. ”

"A sword?" If the names of the previous three layers were somewhat straightforward, the names of the fourth layers sounded a bit too simple, and Su Mu couldn't understand the deep meaning for a while.

"There are ten thousand laws in the world, harmony but difference, but all laws are one, but they can be broken with one sword. ”

Wang Shi said slowly, "This is a realm exclusive to Taibai alone, and it is still too far away for you now." ”

Su Mu also knew very well in his heart what Master Wang said was extremely true, and now that he was still trapped in the Sword Casting Stage Star Falling Realm, he didn't want to think about those illusory things.

"Master Wang, what exactly is the special practice that you just said is suitable for me to do?" Su Mu had already understood the basic concept of Sword Heart, but he still couldn't guess how this related to the special cultivation method that Master Wang said.

"You come with me. Wang Shi said that he walked towards the depths of the back mountain, Su Mu followed closely, and Yin Yu hesitated for a long time, and finally chose to follow.

The three of them walked through the dense forest and soon came to a deep valley near a spring that was poured into the slope of a waterfall several meters high. Although the water of the waterfall is not very strong, it also makes a big splash on the surface of the spring.

Su Mu and Yin Yu looked at it and found that there was a rugged boulder lying across the water at the entrance to the water.

"This cultivation is here. Wang Shi stopped and pointed to the waterfall, "Take off your shirt and stand on one foot on that boulder." ”

"And then?"

"No, then, just stand first. ”

"How long are you going to stand?"

"Well, you're still growing your body, and it's not suitable to practice too hard, so let's stand for three days and three nights first. ”

"Three days and three nights?" Otoha preemptively helped Su Mu express his surprise.

Although it was late spring and early summer, the air was not hot enough to stay naked for a long time under the mountain waterfall.

Could this be some special cultivation technique?

"Oh yes, you can't use True Qi to block the flow of water during this time. Master Wang added, "Otherwise, the meaning of cultivation will be lost." ”

Su Mu wanted to know what the purpose of this move was, but he couldn't open his mouth to question Wang Shi's arrangement.

Earlier, when Su Mu was reading the Daozang, he had seen some ascetics use similar methods, but that was just to exercise his mind

Su Mu did not hesitate, and immediately followed Wang Shi's instructions, took off his shirt, and jumped under the waterfall with a horizontal leap.

In an instant, the water of the waterfall smashed Su Mu's body, cold and impactful, and Su Mu felt that his entire body was trembling.

"Master Wang," Yin Yu plucked up his courage to step forward and asked, "Brother Mu really wants to last three days and three nights like this?"

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"Of course. Wang Shi stared at his shoulders with his eyes confined, "This is just the beginning. ”

"But Master Wang, what does this cultivation have to do with sword training, is it just a matter of hard work and hard work?"

"Haha, of course not, just to calm his confused and feverish head a little bit because of anxiety. ”

"That's it?"

"Of course it's not just that. An unfathomable smile hung on the corner of Wang Shi's mouth, "It's just that the specific effect will not be visible until a while later." ”

"After solving Su Mu, it's time to talk about you. Wang Shi turned to Otoha, who had a suspicious face, and said, "Actually, in addition to helping Su Mu with his cultivation this time, part of the reason why I came here was for you. ”

"Me?" Otowa looked left and right, confirming that Wang Shi was speaking to him.

"It's you. Before Master Wang's words fell, Otoha felt a chill on his neck, as if some sharp weapon was lying across it, and if he made a rash move, he was likely to die.

The girl who has been staying in Hanshan has experienced such a battle since she was a child, and she was suddenly frightened, and she couldn't even react at all, she just stared at Wang Shi in a daze, her eyes full of horror and puzzlement.

"Although Su Mu's aunt doesn't say it, I actually know that she cares more about Su Mu's child than anyone else. Wang Shi looked at Yin Yu and said, "Because of some things, she can't be by Su Mu's side, and the contradictions in her heart make her not want to get close to Su Mu." ”

"She knows that Su Mu has a close little junior sister in the Sword Sect, that is, you. So I asked me to take a look at your situation by the way, and if it is convenient, we can also improve your strength together, and in the future, Su Mu will walk the rivers and lakes, and they will take care of each other. ”

Improve your strength! Otoyu felt a sigh in his heart, can he also practice with a master like Wang Shi? But what is the situation in front of him?

"But I'm suspicious in life," Wang Shi's tone was steady, but the invisible pressure on Otoyu's neck deepened half a minute deeper, almost cutting a thin wound, almost revealing a trace of blood red.

"So before teaching you, I have to make sure that your family background is innocent, and you won't become a threat to Su Mu in the future. ”

And then something strange happened. ”

"It stands to reason that you are thirteen years old this year, although you are an orphan and grew up in the Cold Mountain Sword Sect since you were a child, you can always find traces of your parents, whether they are dead or alive now, you should know that I have this ability. ”

"But the spies I sent out before I came here found almost nothing. Wang Shi's eyes suddenly became cold, and an invisible killing intent was instantly released, almost pointing directly at Otoha's heart.

"They questioned most of the villages and towns in the southeastern suburbs of Tunan, and there was not a single couple who had abandoned their baby girl 13 years earlier. This is Hanshan, not Luojing, if a couple wants to send a baby girl to Hanshan, they will always be recognized and seen by people nearby along the way, and some traces will be left. ”

"On the only way up the mountain, there are four or five old hunters who have lived there for more than 20 years, and if there is such a couple, they must have some impression. ”

"I've also read the list of disciples in Hanshan, and the one who picked you up thirteen years ago was a master in charge of the room at that time, and now he has long since passed away. According to what he said at the time, he found you in your infancy in the Cold Mountain Sword Sect. ”

"The time is exactly three months after Su Mu was sent to the sect, don't you think this is very strange?"

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