Empty layer.

"Hiccup~"

Yunze burped, broke away from his cultivation state, and looked up at Bubu beside him.

Since he increased the Qi Sea to three hundred times, the effect of taking Qi Casting Pills has been very low.

After reaching the ninth realm of Qi Sea, taking one Nine-Revolution Qi Casting Pill can only double the Qi Sea.

After reaching 300 times the Qi Sea, it will take two Nine-turn Qi Casting Pills to double the Qi Sea.

His hiccups now smell like elixirs, which is really unbearable.

"How many times?"

Bubu's voice sounded, and it was obvious that she had been paying attention to the situation on Yunze's side.

"three hundred."

Yunze replied, got up and stretched his muscles: "I took a rest, how many days has it been now?"

"Three days."

"It's been three days...is there any news from outside?"

Soon after Yunze entered the state of cultivation, Bubu came to him and asked for the jade slips.

It is said that if there is news from outside, she can contact it as soon as possible.

Yunze thought for a few breaths, and finally decided to give the jade slip to Bubu, letting her handle the situation outside.

In any case, she knew Disha better.

"They are already looking for people. It is estimated that they will gather together to break through the foundation in seven days, and then they will start to collect a large amount of source energy."

Yunze couldn't help but frown.

Seven days, fifty-six times.

From a purely computational perspective, this is just right. He can go out and fight with everyone.

But...this thing cannot be said from a calculation point of view!

Now that he has expanded the Qi Sea to three hundred times, he has already felt the limit. Every time he expands outward, he feels like he will be exploded at any time.

Fifty-six times more!

Even if this level can be achieved in theory, it may not be achieved within seven days.

Forget it, no more rest!

Yunze gritted his teeth and sat back down cross-legged again, preparing to stuff the Nine Turns Qi Casting Pill into his mouth.

But when he poured spiritual energy into the Sumeru Ring, his whole body was stunned.

There are only twenty-four Qi Casting Pills left!

Previously, I was taking pills while practicing and didn't pay attention to the amount of pills left.

Now I see that there are only twenty-four Qi Casting Pills left, which is not enough to expand the Qi Sea!

"Eat it first, and it will be whatever you can improve."

Bubu's voice sounded again.

From what she meant, she seemed to have known for a long time that the Qi Casting Pill was not enough?

Too.

Bubu knows the method of building the foundation of Heavenly Dao, so he should naturally also know the difficulty of expanding the Qi Sea 365 times.

She had previously given herself a portion of the Qi-Building Pills, and she should be able to roughly estimate how many Qi-Building Pills she would need to achieve Qi Sea Perfection.

And these Nine Revolutions Qi Casting Pills were all ‘borrowed’ by her from the Alchemy Master, so naturally she knew best whether they were enough or not.

Now that she is letting herself eat first, is there any other way she can help her expand her air sea?

"good."

A doubt arose in Yunze's mind, but he didn't think much about it. He first refined the remaining twenty-four Nine-turn Qi Casting Pills.

It took Yunze half a day to refine the twenty-four Nine-turn Qi Casting Pills.

Now his Qi Sea has expanded to 311 times, and he is still 54 times away from the state of perfection!

This fifty-four times is like a natural chasm to him!

The first twenty Nine-turn Qi Casting Pills allowed him to break through to 310 times the Qi Sea, but the last four only allowed him to break through twice as much!

In other words, every time the Qi Sea increases by ten times, the efficiency of the Nine-Revolution Qi Casting Pill will drop by one-fold!

If this is the case in the future, then he will need at least... 916 Nine-turn Qi Casting Pills!

This is equivalent to the amount of all the Nine-Revolution Qi-casting Pills he had swallowed before!

Not to mention the Alchemy Masters, even ten Alchemy Masters would not be able to refine such a quantity of Nine-turn Qi Casting Pills in these seven days!

What's more, I might not be able to eat so much...

God knows what method Bubu will use to get himself over this natural chasm.

Yunze opened his eyes, but before he could speak, Bubu's voice sounded again.

"Is the refining finished?"

"Um."

Yunze responded: "Now it's three hundred and eleven times. It's really getting harder as you get to the back."

"That's natural."

Bubu said and stood up and walked towards him: "Since ancient times, the state of perfect Qi Sea has been the dream of geniuses of all races. In addition to the need for a large amount of natural materials and earthly treasures to assist, perseverance, luck, inheritance, and talent are all lacking.

Not even one!

With your qualifications, if you were placed in the clan back then, you would be at the eighth level of the Qi Sea at most. To achieve the perfection of the Qi Sea is simply a fool's dream.

But now...sigh."

Bubu sighed, a trace of loneliness flashed in his eyes, and stopped talking.

She walked up behind Yunze, raised her hand and placed it on his head: "That's all, let's not talk about the past, just relax your mind and stick to the spirit of heaven!

No matter what happens next, don’t use spiritual energy.”

"I want you to trust me completely, can you do it?"

"able!"

Yunze knew that Bubu would not harm him, so he responded and followed what she said, relax his mind and stick to the spirit of heaven.

moment!

Yunze felt a stream of spiritual energy penetrate into his body, spread to his limbs and bones at an extremely fast speed, and then poured into the sea of ​​energy like the confluence of hundreds of rivers!

Buzz!

There was a buzzing sound!

Yunze felt the destiny blood, sword seed, and sword energy extracted from Xiao Shu's body vibrate instantly!

That spiritual energy wraps up these three and coordinates the vibration frequency of the three.

So sad!

It feels like there are countless ants climbing on the soles of your feet and palms!

He instinctively wanted to mobilize his spiritual energy to remove the itching, but he could only suppress it with his consciousness!

Now he finally knew why Bubu mentioned 'perseverance'.

Not everyone can persevere with this stuff!

Soon, the oscillation frequencies of the three were finally coordinated by Bubu, and the sea of ​​​​qi suddenly oscillated!

"puff!"

Yunze spurted out a mouthful of blood, and the itching was instantly dispelled, replaced by bursts of severe pain!

It was different from the shock in the sea of ​​​​qi caused by his previous touch of sword energy.

This time it was the oscillation of the air sea caused by the simultaneous tremor of three objects, including the destiny blood and the sword species!

It’s not even an instant shock, but a continuous shock!

But the effect is also extremely significant!

Even if the Qi Sea is three hundred and eleven times as big as it is now, Yunze can feel that his Qi Sea is constantly expanding at a speed visible to the naked eye!

"persist in."

Bubu's voice sounded from above his head, slightly trembling: "For the first time, you must hold on for at least ten breaths! At least ten breaths!"

Yunze could feel that Bubu was in great pain.
To be continued...