Liuli Purifying Heart Fire, the seventh-ranked fire on the Yin Fire List, is worth at least eight hundred spirits, and it is the most suitable for cultivating demonic skills. In fact, although the Yin Fire Flame is scarce, it will not take much time to collect it with the Yin Nether Demon Sect's huge network, but it is a pity that Yu Ke wants all the top-ranked Tinder, and it is naturally very difficult to collect, and it took more than two years to get it.

After getting the glass pure heart fire in his hands, Yu Ke issued another reward order.

After all, the Yin Fire thing is related to its own foundation problem, and it is directly related to the Jindan grade formed in the future, and it is a big deal to get together the five Yin Fire Seeds as soon as possible.

In addition, there is a special joint attack array for many ghost servants and monks in the Futu Vajra Demon Buddha Book, and several kinds of yin fire are combined to form a large array, and the power is also very considerable.

After returning to the residence of Xuansha Valley, Yu Ke couldn't wait to plunge into the cultivation room, summon the invisible ghost servant, and then began to guide it to refine the glass pure heart fire.

In the fist-sized transparent crystal, a white flame kept beating, a little chill could even break through the seal on the bottle and transmit it, which made people can't help but feel a little chill from the heart.

Carefully remove the seal from the bottle, and then let the invisible ghost servant take out a small trace of fire from it and refine it on its own. After seeing that everything was on the right track, Yu Ke left the blood shadow clone behind and let the clone act as the invisible ghost servant protector.

Soon, a month and a half passed.

On this day, Yu Ke came to the Sword Demon Palace early, and after greeting Situ Huiying, he went to the Sword Casting Hall alone.

In the Sword Casting Hall, the sloppy monk saw Yu Ke coming, and without saying a word, he took down a long sword with a simple scabbard from the shelf next to him and handed it to Yu Ke: "Boy, you have earned it this time, if you hadn't agreed on the price in advance, you wouldn't even want to get this sword weapon of 1.8 million spirits, hum." ”

"Then thank you seniors. Yu Ke smiled slightly, took out a spirit stone and handed it over.

"Hmm. The sloppy monk nodded, put away the spirit stone, and then said, "Boy, this is a good sword, use it well, don't ruin the old man's reputation." ”

"Don't worry, this sword weapon is definitely not weak in my hands. Yu Ke said, "By the way, this sword is famous?"

"No, you take it yourself. The sloppy monk shook his head.

"Then let's call it Shura. Yu Ke smiled slightly, holding the hilt of the sword, only to hear a sharp sound of air tearing, and the blood-red sword body appeared with a compelling sword aura, and the sword qi surging seemed to be able to cut the void. The sword weapon was unsheathed, and even the sheathed sword weapons placed on the densely packed shelves of the Sword Casting Hall began to buzz and tremble, as if they were paying tribute to the king of the sword.

"Good sword!" Yu Ke nodded with satisfaction.

"The name is not bad either. A rare smile appeared on the sloppy monk's face: "This sword is compatible with thunder and fire spells, you only need to use the method of sacrificial spirit refining to refine a little. ”

"Thank you, senior. Yu Ke saluted the sloppy monk, but saw that this old guy actually started his work as if no one was around, and he didn't bother at the moment, and went out of the Sword Casting Hall directly, and then drove the flying spirit weapon back to Xuansha Valley.

Time flies slowly, and in the blink of an eye, it is half a moon time, during this period, the Yaksha ghost servant and the invisible ghost servant have finally completed the work in hand, and the Yaksha ghost servant has completely refined the Xuansha Heavenly Thunder Yuan, and completed the initial pregnancy, and the next time this Lei Yuan is completely integrated with the Yaksha ghost servant, with the improvement of the ghost servant's cultivation, the power of the thunder element itself will also increase. The invisible ghost servant also finished refining the glass pure heart fire.

The life-saving hole card is there, and the strength has also increased, but Yu Ke is not in a hurry to report to the front line. Because the cultivation of the deity has already reached the peak of the third layer of the Swirl Liquid Period, it is estimated that after a short period of cultivation, he will be able to break through to the fourth layer of the Spinning Liquid Stage, and at that time, not only the clone will also break through, but the upper limit of the cultivation of the ghost servant will also be able to be raised by a small level.

With the help of one more tinder, Yu Ke's cultivation progress not only did not improve, but decreased by nearly two layers, but this is a good thing, after all, the foundation is more solid.

With the joining of the Liuli Pure Heart Fire, Yu Ke immediately tempered his mana, but the mana in his body had been purified in the secret realm of the Xuanhuo Altar earlier, but there was not much obvious improvement.

In the blink of an eye, three months have passed since the two realms of the righteous and demonic realms launched a campaign, and in these three months, except for the sudden attack of the six realms of the righteous and demonic realms in the early stage of the war, the Qixin Alliance and the Yin Xia Empire suffered some heavy losses, after surviving the early stage of the war, the two major forces did their best to finally stabilize their positions, although the battle line was still moving forward step by step, but it could be regarded as entering the stage of stalemate.

The Demon Dao side is a little better, facing the Qixin Alliance in the form of an alliance, and the internal forces of the Qixin Alliance are mixed, although the territory is a little larger than that of the Yin Xia Empire, and the number of strong people is also a lot more, except for a few forces with a strong style, but many sect forces are not very strong in their will to resist, but it also gives the three sects of the Demon Dao a lot of opportunities.

But the Zhengdao Alliance is not so comfortable, the Yin Xia Empire is a whole, and the style is notoriously tough, and it is almost an inch of land to fight in a war, and sometimes the situation is in crisis, and even regardless of the rules, the Yuanying-level master is sent to sneak attack. Although the results of the battle on the side of the righteous path are not small, they are also in a lot of trouble.

After more than two months of retreat, Yu Ke finally broke through to the fourth layer of the spin liquid stage as he wished.

In the process of breaking through, there was an unexpected bottleneck, which made Yu Ke depressed. You must know that the mana cultivated by the Futu Vajra Demon Book is extremely pure, although the cultivation speed is extremely slow, but the small realm that breaks through the spinning liquid period should generally not have a bottleneck, and the reason for this is that Yu Ke can only attribute it to the spiritual vein qualification.

Fortunately, Yu Ke still had ghost servants, and under the combined efforts of several ghost servants, he directly crushed the layer of diaphragm with majestic mana, successfully broke through the bottleneck, and became a monk in the middle of the spin liquid.

After stabilizing the realm a little, Yu Ke went out.

For this conquest war, Yu Ke did not have the slightest intention of retreating, as a demon cultivator, he should fight the heavens and the earth, and be fearless. What's more, cultivation requires a large supply of resources and treasures, which can be captured in battle.

After leaving the Xuansha Valley, Yu Ke went directly to the law enforcement hall of the headquarters and applied for the front-line combat mission.

After arriving at the Law Enforcement Hall, Yu Ke learned that Tietou, Situ Huiying, Tong Yingyou and several others had gone to the front line not long ago.

A few days later.

Under the command of the Yin Demon Sect, the Eastern Luan Kingdom, the Imperial City, and a branch hall of the frontline headquarters of the Law Enforcement Hall, Old God Yu Ke was sitting on the main seat, looking at the group of monks standing respectfully below, twelve Vortex Stage monks in different clothes, plus sixty high-level Qi cultivation stage monks.