Although the Dark North Battle for Supremacy only lasted for half a year and close to a month had passed, Wu Yu still calmed himself and focused on studying the two offensive spirit designs.

He spent a substantial amount of time studying, while others were using the time to rapidly open up the distance between them. However, Wu Yu was confident in catching up and even making it to the top 10.

On the end of the Heaven Devouring Avatar, he was still devouring the demon’s corpse. It would likely take some more time before he could completely digest it.

Based on the current pace, the Heaven Devouring Avatar would likely be able to reach the equivalent of a 10th tier Jindan Dao cultivator or a first tier Violent Kingdom of the Inner Sea cultivator after devouring the demon.

The truth was, the Ghost Sea Prison was the best place for the Heaven Devouring Avatar to be born. There was a large number of demons available to be killed here. If he was in the Dark North Kingdom or other places, there wouldn't be that many.

He had roughly five months left. However, based on this speed, his devouring ability would only get stronger. It would likely take at most a month before he reached the level of Wu Yu's main body. Or perhaps he wouldn't even need that long.

His main body started studying the offensive spirit design of the 10,000 Dragons Staff while the Heaven Devouring Avatar continued devouring and digesting.

Wu Yu was currently in a rather deserted corner. Few demons and martial cultivators would pass by. This provided him a relatively stable environment.

"He has such a great opportunity and yet he chose to cultivate in that place. What a waste of time. Before he entered the Ghost Sea Prison, he should have raised his cultivation level to the peak and spent the half year solely on killing!" Outside, some people who were spectating the Dark North Battle for Supremacy made remarks after noticing what Wu Yu was doing.

"Initially, I thought he would give a shocking performance and stood a chance to be in the top 100. Now, it seems like he no longer has any hopes."

"Yeah. He has wasted several days now and many people have overtaken him."

When they saw Wu Yu cultivating, the number of people paying attention to him dropped further. After all, in other places, there were more young experts engaging in intense battles with the demons. The battles were more thrilling and full of twists and turns.

However, on the side of Yan Huang Ancient Country, there were lots of people paying attention to Wu Yu. Most of them were also discussing the various magical methods that Wu Yu had displayed.

They were discussing and verifying if anyone knew such methods had ever appeared in the history of the Dong Sheng Divine Continent. Naturally, no one knew.

Qu Yin and a few old men around him often talked about Wu Yu.

When they saw Wu Yu sitting down and cultivating, he said, "This brat is pretty interesting. I believe his main objective of participating in the Dark North Battle for Supremacy isn't to win any awards. After all, this is something that is almost certainly out of his reach. Becoming stronger is his real objective. Perhaps this is also the reason behind him going to the Dark North Kingdom."

"I heard he had planned to go to Yan Huang Ancient Country initially. However, he was worried that he would have no support or background when he reached the Yan Huang Ancient Country and would therefore become a target for sinister schemes. As such, he chose the Dark North Kingdom, where he had the protection of Princess You Xue. When the Dark North Battle for Supremacy ends, we can think of ways to gain his trust so we can bring him back. For a young talent like him, even if we can't get what's on him, it would be great if we could raise him to serve the Yan Huang Ancient Country," said the old man next to him.

"Although the people from the Dong Sheng Divine Continent can be considered members of our Yan Huang Tribe, the mystiques and techniques he has displayed have truly piqued my interest. If he's brought back to Yan Huang Ancient Country, others would make a move even if we don't. If we leave him here, the Dark North Tribe will gain the most from this," Qu Yin said solemnly.

"That's true."

As they spoke, time was passing. While Wu Yu was familiarizing himself with his advanced dao treasure, his doppelgangers were also getting stronger.

Roughly 10 days later, he had fully mastered the 10 offensive spirit designs on the 10,000 Dragons Staff, including the two most crucial designs.

On the day before this, the Heaven Devouring Avatar had completely digested the demon.

He had become a little stronger than envisioned. A sixth tier Primordial Spirit Transformation Realm demon had strengthened the Heaven Devouring Avatar to the equivalent of second tier Violent Kingdom of the Inner Sea cultivator.

Reaching the second tier of the Violent Kingdom of the Inner Sea Realm in half a month or so was definitely unprecedented in the Jambu Realm.

From here onwards, the Heaven Devouring Avatar wouldn't be fragile to the extent that it might die casually. At the very least, it had a little strength for self-preservation. Obviously, Wu Yu's impending objective was still to further strengthen it.

The 10,000 Dragons Staff had been settled and the Unshackled Doppelganger, which had been stagnant for a long time, should reach a new tier soon as well.

Wu Yu had longed to study the new tier of the Unshackled Doppelganger. He had a clear comprehension and was just lacking a Primordial Spirit. Now that he had the Primordial Spirit, forming the other 9,000 doppelgangers would just be the next logical step.

The difference between 1,000 and 10,000 doppelgangers was extremely huge. The new 9,000 doppelgangers might be slightly weaker than the rest.

Nonetheless, one could imagine the insane might of a dao technique when it was performed by 10,000 Wu Yus simultaneously, even though the Violet Kingdom Primordial Energy might be lacking a little!

"With the Unshackled Doppelganger to amplify them, all the dao techniques in my hands could have power similar to top-class mystiques and not be any inferior to my other attacking methods."

Wu Yu was now looking forward to the scene of 10,000 doppelgangers executing the Blood Weeping World Technique and the Holy Elephant Hell-Shocking Technique together.

When he finally obtained 10,000 doppelgangers, the edge of this mystique would become more prominent. It wouldn't be inferior to the other three mystiques.

Following which, he used close to six days to completely immerse himself within the Unshackled Doppelganger.

This process was smoother. The Unshackled Doppelganger had not improved for a long time. With a powerful Primordial Spirit, mastering 10,000 doppelgangers didn't seem to be a difficult task. After all, Wu Yu's control of his Primordial Spirit was top-class, and it was not inferior to Duan Yi and the rest’s.

Six days later, he successfully formed 10,000 doppelgangers around him.

The only troublesome issue to summon these doppelgangers was to pluck 10,000 strands of monkey hair from his body….

This scene was naturally captured clearly and reflected to the 800,000 people watching.

As the range of the Shadower was limited, the outsiders couldn't see all 10,000 doppelgangers. Instead, they probably could only see around 2,000. Nonetheless, the densely packed Wu Yus filled the entire range of the Shadower, and this scene was too shocking.

"Wu Yu's doppelganger mystique is indeed magnificent. I have never heard of a doppelganger mystique like this. A doppelganger mystique like this could very well rank in the top 10 in the Yan Huang Ancient Region. In fact, I believe it could be in the top three," You Shang commented in awe after witnessing it.

"Interesting. Truly interesting. Previously, I even saw all his doppelgangers executing dao techniques. There must be at least 2,000 doppelgangers there! If they used the same dao technique at the same time, even the weakest dao technique would have top-class strength. A mystique like this is truly inciting jealousy." Even You Shi was impressed.

Discussions about Wu Yu bloomed once again.

Naturally, there were also more people who would be after his legacy.

However, Wu Yu did not regret participating in the Dark North Battle for Supremacy and exposing his mystique before the eyes of the crowd.

At the very least, he had successfully formed his second Primordial Spirit in this place. This outcome had greatly exceeded his expectations.

However, Wu Yu was faced with a new predicament: the number of Great Dao Primordial Spirit Pills that the 10,000 doppelgangers needed was too high.

Currently, these doppelgangers had to be boosted to the equivalent of the Primordial Spirit Transformation Realm.

They didn't have real Primordial Spirits. However, their Violet Kingdom Primordial Energy could be further enhanced.

Wu Yu was lacking a large number of Great Dao Primordial Spirit Pills. He estimated that his exhaustion of Great Dao Primordial Spirit Pills was probably thousands of times greater than others. Great Dao Primordial Spirit Pills represented the wealth of martial cultivators. At this point, Wu Yu was penniless and destitute.

At this juncture, he didn't have Great Dao Primordial Spirit Pills. Therefore, his doppelgangers wouldn't be sufficiently strong and wouldn't reach their peak states.

"There's only one way to go about it." Before Wu Yu reached this tier of the Unshackled Doppelganger, he had thought of this solution. That would be to snatch others' Great Dao Primordial Spirit Pill.

Although this would offend many people and would be too conspicuous, offending people in the Dark North Battle for Supremacy was something to be expected. Considering that he had been too conspicuous as well, Wu Yu didn't care if he was even more so.

He knew many people had their eyes on him. For him, there was a huge hurdle right ahead.

"If my strength can break through this hurdle during the Dark North Battle for Supremacy, there won't be many people who can do anything to me, regardless of how high-profile I might be when I get out."

He felt that martial cultivators had to have the courage to just charge ahead without considering the potential consequences. This was also his dao. Straightforward and courageous.

Therefore, his next objective would be to kill demons to get Dead Souls Nets and resources for the growth of the Heaven Devouring Avatar. At the same time, he would have to snatch and steal the Sumeru Pouches of other martial cultivators.

In other words, within the Ghost Sea Prison, both martial cultivators of the Dark North Tribe and all demons were his targets.

This would be insane.

10,000 doppelgangers distributed throughout the entire Ghost Sea Prison would be too shocking.

Wu Yu's doppelgangers would be caught in almost every Shadower's range.

At this moment, Wu Yu had not done this. However, he had not excluded this method, and he had the guts to execute it.

"Let's start hunting!"

Wu Yu still used his first 1,000 doppelgangers to lure demons and search for martial cultivators he could deal with.

The Dark North Tribe members he encountered here detested him. Now he could teach these people a lesson.

There were too many doppelgangers to feed, and this included the Heaven Devouring Avatar.

When he reached the Primordial Spirit Transformation Realm, there were a lot more demons he could finally lay his hands on.

His speed and efficiency had also improved substantially. Over the next 10 days or so, he could kill three or more demons each day. 10 days of quick advancement had allowed him to gather over 50 Dead Souls Nets. Moreover, he was getting even quicker and quicker.

Three or more demons a day could almost definitely put him in the top 10 throughout the entire Ghost Sea Prison. The leads that others had extended over him previously were now diminishing rapidly.

He didn't encounter any Dark North Tribe martial cultivators over these 10 days. However, Wu Yu believed it was merely a matter of time.

The 30 or so demons had been devoured by his Heaven Devouring Avatar. As he progressed, the speed of devouring increased exponentially.

At this point, devouring the corpse of a seventh tier Primordial Spirit Transformation demon would only require 15 minutes or so.

His Heaven Devouring Avatar now had strength equivalent to eighth tier Primordial Spirit Transformation cultivators.

It was also on this day that Wu Yu met two familiar faces.

Gong Shenjun and Yin Xuan! To Wu Yu's surprise, they had gotten together to search for Wu Yu's doppelgangers.