If you want to turn the hedron black in the shortest possible time, the best thing is to be undefeated in a battle and maintain a streak of victories, if you fight one battle a day, you can turn the hedron black in two months, if you fight two times a day, you can do it in a month, but the question is, how can they continue to fight undefeated continuously?

"It's too hard. Fang Li said in a low voice, it was really not easy to maintain a streak of defeats, especially for her, fighting has never been what she is good at, let alone winning sixty battles all the time.

"Don't say that, the key upgrade will do you a lot of good. Dean Dom said seductively.

"What's the benefit?" Yu Feng immediately asked, and the other three were also very concerned, and they heard Dean Dom say with a smile: "Hehe, you will know when the time comes." ”

Isn't this nonsense, the four of them secretly glared at Dean Dom, and saw Long Yuanting waving his hand to them, "Everything I want to explain to you has been finished, you can go out." The four of them nodded obediently on the surface, but they muttered to themselves in their hearts, got up and walked out.

Walking out of the bamboo house, Yan smiled, "There's nothing wrong with that, we just happened to see what is so remarkable about this mysterious Ninth Branch, which can attract so many people to study here." ”

Yu Feng also smiled slightly, "Then what are you waiting for, let's hurry up and go to the battle zone, accumulate ten victories first, open the first floor of those places to see what good things are, let's go." After speaking, he took the lead towards the battle area, and the three of them also followed.

The battle is not as simple as they imagined, because there are regulations, it can only be a peer battle or a leapfrog challenge, and they can't fight against people who are lower than themselves, that is to say, all four of them are four-star spirit masters, so they can only fight with the same four-star spirit masters, otherwise it is a leapfrog challenge, so their battles are not so easy to win, and the four of them have exhausted all means to get ten victories, and after ten days, the four of them finally turned the spar on the key into gray, and they can open the first layer of the facilities everywhere, and the four of them stood in front of the door of the Xuanwu Hall, looked at each other, and walked in。

There were many people in the hall, and many people were holding a scroll in their hands, and they were immersed in studying, "Are you here?" Just when they were still looking at the hall, Han Xia Lan's voice sounded behind them, "Brother Han" The four of them nodded to him, and Long Ze said, "Brother Han also came here to learn Xuanwu Technique?"

"Yes, my key is a green hedron that can open the door to the third floor. Han Xia Lan said: "Your key is a gray spar, so you can only open the door of this floor downstairs, but there are also a lot of good Xuanwu skills in it, which are worth cultivating." ”

There are indeed several rooms in the hall, and there is an attribute written on the door of each room, all the Xuanwu skills are classified according to the attributes, only the first room door does not have an attribute written on it, and the Xuanwu skills stored inside are not divided into special attributes, and the four of them are looking for the Xuanwu skills they need, Yan of course opened the door of the room with the dark attribute written on it, Fang Li walked into the room with the water attribute, Long Ze walked into the room with the light attribute, and Yu Feng walked towards the first room, the room without the attribute.

There are several bookshelves in the room, and there is a scroll on the shelf, pick it up and look at it, each scroll has a kind of Xuanwu technique recorded on it, "Yin Wind Knife" Although there is a wind character in the name, it is a dark attribute Xuanwu technique, Yan pronounced the name of the Xuanwu technique, shook his head, he likes to fight empty-handed, he can't use a knife, this Xuanwu technique is not suitable for himself, put it back in its place, Yan continued to look through the other scrolls, but looking around, there is no suitable Xuanwu technique, it is not necessary to cooperate with the weapon, he doesn't like it, or the level is too low, it is useless to practice.

Yan put a scroll back in its place, and sighed secretly, could it be that he just returned empty-handed? But he really couldn't find a suitable oneself, picked up a scroll again, opened it and took a look, the word "dark thorn" came into view, this is a kind of Xuanwu technique that condenses the Xuanwu power in the fingertips, and then catapults it out, attacking the opponent's Xuanwu technique, the level is not high, but it is easy to practice, Yan thought to himself: Anyway, the level of Xuanwu skills here is too low, not very suitable for one's own practice, it is rare to come here, don't go home empty-handed, just choose it.

Walking out of the room with the scroll, he saw that Long Ze had just come out, his expression was also slightly dissatisfied, it seemed that he had not found his favorite Xuanwu technique, and Yu Feng and Fang Li were already waiting for them, Yu Feng was also dissatisfied, Fang Li was smiling, it seemed that she still had something to gain.

The four of them came to the practice ground, because these Xuanwu skills could not be taken out of the Xuanwu Hall, so everyone practiced Xuanwu in the practice ground of the Xuanwu Hall, and the practice field was also full of people, and the four of them found a quiet place, opened their respective scrolls, and began to practice Xuanwu skills.

Close your eyes, keep in mind the Xuan Li running meridian route drawn on the scroll, running the Xuan Li, and slowly running according to those specific meridians, feeling that the Xuan Li is slowly converging on the fingertips, there is a feeling that you are about to break through the skin of the fingertips and shoot out, open your eyes, flick your fingers, and a little black light point flew out, hitting a wooden stake, and immediately punched a small hole in the stake, Yan frowned slightly, not very satisfied.

"I'm in a hurry, if I gather a little more mystical power, I can definitely penetrate the stake. Yu Feng stood aside and said, Yan nodded, agreeing with what Yu Feng said, and asked, "How are you practicing again?"

Yu Feng smiled, raised his hands, the white Xuan Force condensed, he clenched his hands, and suddenly swung out a punch, not hitting any object, "click", a wooden board in front of Yu Feng suddenly shattered into several pieces, "Kaishan Boxing, the name is very domineering, in fact, it is similar to the strong palm we learned before, they are all power-based Xuanwu skills, the difference is that Kaishan Fist can hurt people in the air, but the strong palm must be hand-to-hand combat." "Because the two kinds of Xuanwu skills are almost the same, Yu Feng has mastered it very quickly, and she can already exert sixty percent of the power of Kaishan Fist, and she can fully exert ten percent of the power of Kaishan Fist after practicing a few times, and the reason why she chose Kaishan Palm is also for this reason, she has to do her best to enhance her combat effectiveness in order to get a better record in the battle zone.

Long Ze stood up, walked to the side, condensed his power in his right leg, raised his leg suddenly, and swept a leg whip towards a wooden stake, "bang", the wooden stake broke in response, and it could be seen that the power of this leg whip was not bad, but Long Ze was not very happy, frowning slightly, as if thinking about how to improve the power of this move just now.

Yan and Yufeng didn't bother him, they saw that Fang Li also opened her eyes, she didn't stand up, she was still sitting in place, her right hand condensed Xuanli, and there was no other movement, just like that, she kept her Xuanli condensing palms and not dispersing, the two of them looked at her movements, and then felt her Xuanwu, and sighed helplessly, how to choose this type of Xuanwu technique?

Yu Feng walked over, Fang Li saw her coming over, and also stood up, and at the moment when Yu Feng approached, the right hand that was originally hanging down on his side suddenly rose up, and his five fingers were put together, forming a hand knife, cutting from bottom to top.

Fang Li's action was very fast, and he took advantage of Yu Feng's inattention, and the originally peaceful Xuan Li suddenly became sharp, attached to the palm of his hand, like a sharp blade stabbing at Yu Feng.

At the moment when Fang Li's hand was raised, Yu Feng had already been shocked by the change in her Xuan power, her steps were wrong, her figure flashed, she turned around, avoiding Fang Li's palm with a minimal arc, Fang Li slowly put her hand down, Yan and Yu Feng were secretly surprised, just now they obviously felt that Fang Li's Xuan Power was very peaceful, but at this moment, the Xuan Power suddenly became extremely sharp, the transformation during the period was really very sudden, even Yu Feng was almost deceived, if she didn't release her perception at any time, I'm afraid she wouldn't be able to hide from it just now, "Isn't this a Xuanwu technique for medical treatment?" Yu Feng asked, just now they felt Fang Li's peaceful Xuanwu, and thought that she had chosen a Xuanwu technique for healing, but it turned out that it wasn't.

"What kind of Xuanwu technique is this?" Yan asked.

Fang Li smiled: "You have also been deceived, right? The name of this kind of Xuanwu technique is called cotton needle, which means that there is a needle hidden in the cotton, it looks peaceful on the surface, but it is actually very sharp, if you don't pay attention, you will be injured at any time." After a pause, he said: "But this is also a kind of medical Xuanwu technique, which is very practical and suitable for me." ”

Long Ze nodded, he also saw Fang Li's attack on Yu Feng just now, even Yu Feng, who had the best perception, almost couldn't dodge, and others were indeed easily injured when they were caught off guard, "It's still lucky that you found such a good and suitable Xuanwu technique, ours is not very good." After speaking, he also looked at the other two, and Yan and Yufeng also shook their heads.

Shaking their heads and shaking their heads, dissatisfied with their dissatisfaction, they can only practice this level of Xuanwu now, unless they can get more victories and change the color of the key's spar, then they can open higher-level rooms and learn other Xuanwu skills.

The four of them sat down cross-legged again, following the meridian diagram on the scroll, running the Xuanwu over and over again, and practicing their respective Xuanwu skills hard.