"Northern Black Water Law Book" Xiaocheng!

Looking at the black river that appeared in the dantian space, and then glancing at the data on the attribute panel, Zhou Yi silently muttered in his heart.

"Energy balance, ninety thousand!" Glancing at the number behind the energy attribute again, Zhou Yi calculated it in his heart.

"It took a total of 10,000 energy to upgrade the Northern Black Water Law Book from beginner to Xiaocheng, and this extra 1,000 energy was refined in a short period of time after stopping adding points!"

"It seems that the effect of this third cell transformation is really good, for me now, it can really be said to be a relief in the snow!" Looking at the extra thousand energy, Zhou Yi was excited in his heart.

"Ten thousand energies have raised the Northern Black Water Law Book to Xiaocheng, and the amount of black water it has cultivated has changed from one drop to one!"

Looking at the black river across the dantian space, a light flashed in Zhou Yi's eyes.

"Now, if I meet Liu Dan and the others again, even if my mana does not improve, just relying on this black water river should be enough to compete with them!"

"Even, as long as you bless more than sixteen pairs of heaven and earth world maps, even crushing should not be a problem!"

A smile suddenly appeared in Zhou Yi's eyes, and he nodded with satisfaction, and promoted the "Northern Black Water Law Book" from beginner to Xiaocheng, which really didn't disappoint him!

"Ninety thousand... No... It's ninety-two now!" Thinking about it, Zhou Yi glanced at the energy on the attribute panel, and the smile in his eyes was not only stronger!

"Come to think of it, these should be enough to upgrade the Northern Black Water Law Book from small to large!"

Staring at the continuous rise of energy on the attribute panel without blinking, the corners of Zhou Yi's mouth turned up, and he secretly calculated: "Even if it doesn't work, according to the current energy rising rate, as long as it takes a little more time, it shouldn't be a problem!"

"It's not a problem to go from small to great, but from big to complete... But I don't know if I can do it!"

Zhou Yi looked around, the dark and colorless water was coiling around his body, he looked down at his feet, his mana was running, his eyes were shining, and he looked down through the dark water: "I don't know, how deep this Netherworld Weak Sea is!"

The Netherworld Weak Sea is so powerful, even now, Zhou Yi can't compete with it, and his body is constantly falling down by the all-pervasive gravity of the Netherworld Weak Sea!

He tried to resist so that he didn't fall, but although the current around him could not cause him strong damage due to the presence of the Great Sun, the weakest force in the existence and every drop of water still hovered around.

The existence of this weakest force made him fall down like an ordinary person in the sky in this netherworld and weak sea!

Unable to control his whereabouts, Zhou Yi could only pray that this Netherworld Weak Sea could be deeper!

The reason why his current energy can rise so fast is precisely because of the existence of the Netherworld Weak Sea, if the Netherworld Weak Sea reaches the bottom... If he has no head and no bottom, he leaks out directly, then he has lost the existence of the Netherworld Weak Sea, and it will be difficult for him to increase his energy at this speed like he is now!

...... It is not excluded that such a may not be!

Because energy is too important to Zhou Yi now, he is now suffering from some gains and losses!

"That's it!" After thinking for a while, Zhou Yi sighed faintly, it was going to rain, his mother was going to get married, with his current situation, no matter whether he was worried about the sky or not, it was really as he thought, what else could he do to change it?

It's just worrying!

Nothing substantial!

Retracting the thought of emanation, Zhou Yi continued to improve the proficiency of the Northern Black Water Law Book, and now, the only thing he could do was this!

With the continuous increase of energy, in the dantian space, the newly formed black water river rippled all around, slowly growing, and no obvious growth could be seen in a short time!

"It's a little slow!" Zhou Yi sighed lightly, but this speed is unimaginable compared to others, after all, not everyone has the existence of a golden finger, although there is no obvious change now, but this is also because the blackwater river is too big!

There was only one drop of water before, so every bit of change can be clearly seen, and each time the growth is extremely conspicuous, it looks like it is almost jumping and turning!

But this is relative to its foundation, what is its foundation? a drop of black water!

Compared to a drop of black water, adding a drop is doubled!

And what is his current foundation? a river of black water!

Between breathing and thinking, although the black water only rippled for a while, and there was no obvious change, in fact, in the same amount of time, the black water that grew was definitely much more than before!

This can be seen in the speed at which the energy disappears!

Previously, it only took a total of 10,000 energy to upgrade the "Northern Black Water Law Book" from beginner to Xiaocheng, but now, in less than a stick of incense, about 6,000 energy has been used!

There are four layers of "Northern Blackwater Law Book", which are divided into beginner, small success, large success, and consummation according to proficiency!

The situation is very simple, the entry is to form a drop of black water, Xiaocheng is to form a black water river, Dacheng is an ocean, and consummation is the true seed of condensation law!

Zhou Yi's current realm of "Northern Black Water Law Book" is Xiaocheng, he has a black water river, and what he has to do now is to use his energy to grow this river into an ocean!

The difficulty of this can be seen just by imagining!

"Take your time!" The depth of the Netherworld Weak Sea is unknown, but from the previous exploration, he can know that it is very deep, and at his current speed, he doesn't know how much time it will take to reach the extreme depth he has explored before!

At the very least, during this time, he doesn't need to worry about energy, so no matter how much energy he needs from Xiaocheng to Dacheng, it should be no problem!

A day later, in the dantian space, the original style of the black water river has expanded to the boundless extent, covering the sky, it seems that it cannot find the beginning or the end, and it already has the characteristics of the sea.

"Almost!" Looking at the black water river that was still growing to the boundless, Zhou Yi exhaled lightly, and finally reached it.

Zhou Yi didn't expect that the "Northern Black Water Law Book" only took 10,000 energy from entry to Xiaocheng, but it took him a whole day from Xiaocheng to Dacheng, and the amount of energy consumed was almost nearly five million!

In this process, relying on the blessing of this Netherworld Weak Sea, Zhou Yi has already increased the number of cells to the limit, 99,999, and because of this, the speed of cell transformation energy has been greatly improved, so that he can save five million energy in one day, reaching the current point!

Rumble!

There was a sudden sound in the dantian world, and the boundless black water river burst into a burst of black water, a black light flashed, and Zhou Yi was overjoyed: "It's done!"