Back in his room, Cao Kun walked into the bathroom and took a cold shower to calm himself down.

Holding Liu Erlong, who has a hot body, for an afternoon, he can't think about it if he doesn't want to be hot!

He will have to enter the small cave to cultivate later, and the cultivation speed inside is much faster than outside.

However, Ah Yin is still inside, if you see her in the way she is now, you won't directly correct her on the spot.

If this desire is born because of Ah Yin, forget about Ah Yin's rectification on the spot, but this desire is because of Liu Erlong!

If he goes in directly, then he is too inhuman, he can't be so scummy!

After taking a cold shower and practicing cross-legged on the bed for a while, Cao Kun entered the small cave heaven with a thought.

And Gu Yuena, who knew the sea, continued to close her eyes and continue to recover after making an illusion in the same place.

She is not interested in Cao Kun's private life.

"Aman, you're back."

As soon as Cao Kun came in, Ah Yin greeted him with some surprise.

Staying in this little cave with an unobstructed view, she was a little bored.

"I'll come in with you every day."

Taking Ah Yin's outstretched hand, Cao Kun smiled.

Immediately after, after he and Ah Yin said a few sweet words, he sat down next to the eyes of ice and fire and cultivated.

The environment here allowed him to speed up the absorption of the medicinal power of the remaining Octagonal Xuanbing Grass and Flame Apricot in his body, which made his cultivation speed faster.

……

During the day, next to Liu Erlong's wooden house.

"Stinky boy, it's coming pretty fast!"

The windless bird that Cao Kun transformed swooped down from the sky, and when it was almost close to the ground, it turned back into a human form and jumped next to Liu Erlong.

"What's going on?"

Looking at the wooden house burning with a raging fire in front of him, Cao Kun asked suspiciously.

"I don't like it, I'm going to rebuild one."

Liu Erlong said with a smile.

Cao Kun didn't speak, standing next to her and watching the fire engulf all the wooden houses, and in the end only a piece of black and sudden was left, it seems that Liu Erlong's fire is not an ordinary fire.

"Let's go!"

After the fire was extinguished, Liu Erlong turned around and walked towards the exit.

Cao Kun hurriedly followed up and asked:

"Where are you going, Sister Erlong?"

"Aren't you in a hurry for me to take you to cultivate, go now!"

"By the way, how many levels are you kid now?"

"Thirty-seven."

“37！”

"It seems that what Poison Douluo gave you is worth a lot of money!"

Liu Erlong opened his mouth in a surprised tone, from level 23 to level 37, it has only been less than a week!

"Good luck."

Cao Kun snorted.

Liu Erlong was noncommittal, and led the way in front with a smile.

……

"Let's go, let's go in!"

Walking to the battlefield for the first time when Liu Erlong brought Cao Kun to the indoor soul master, Liu Erlong said to Cao Kun behind him.

"Why are you here, you won't have to fight again, will you?"

Following Liu Erlong into the battlefield, Cao Kun smiled bitterly.

"What, scared?"

Turning around, Liu Erlong looked at Cao Kun and said with a smile.

"How so!"

Cao Kun looked at Liu Erlong with a fearless look.

"Haha, for the sake of you being so obedient yesterday, I won't teach you a lesson today."

"Let's come here first to get some things, so that we can help you cultivate."

As she spoke, she opened a room on the side of the battlefield indoors, and then motioned for Cao Kun to follow.

Walking into the room, it was filled with sandbags and iron, as well as some things that Cao Kun didn't recognize.

"Although your current physical fitness far exceeds that of soul masters of the same level, you still have to continue to refine your body."

"Tie them to your limbs!"

Liu Erlong picked up four sandbags and threw them at Cao Kun.

It's pretty heavy!

Taking the sandbag and feeling the weight on his hands, Cao Kun thought with some surprise.

Looking at these sandbags, they are the size of a fist, but they weigh three or four hundred pounds!

Looking at Cao Kun's surprised eyes, Liu Erlong explained:

"There's black sand in there, a sand that's incredibly heavy."

"This bag weighs 100 pounds."

Hearing this, Cao Kun did not immediately tie the sandbag to his limbs, he walked over to a small piece of iron and asked:

"Then this piece of iron is not made of ordinary iron, is it?"

"Well, this is black iron, and it is also extremely heavy, just this small piece weighs 500 pounds!"

"You usually tie sandbags to your limbs, and there's nothing you can't take off."

"When you train, you use this to carry some iron and run ten laps around the back mountain!"

As she spoke, she came over from the side with something that looked like a back basket, and it should be made of some special material.

Taking the back basket, Cao Kun tied the four bags of sandbags to his limbs, moved it a little, and found that the impact was not great, and then added four more bags.

"It should be about the same."

After moving his hands and feet, Cao Kun said softly.

Although he was still growing his body, he is now more than 1.9 meters tall, and he is not afraid of growing tall.

And this weight-bearing training does have some benefits, so let's carry weights.

"What about after ten laps?"

After tying up the sandbag, Cao Kun looked at Liu Erlong and asked.

"If you meditate and practice after running, if you practice just after exercising, you can speed up the absorption of some soul power."

This sentence made Cao Kun frown, and asked with some confusion:

"Gone?"

"Tempering the body is only to run with weights?"

"Or else!?"

This time it was Liu Erlong's turn to wonder, isn't it usually weight-bearing training to temper the body.

"Although weight training is indeed beneficial, it can't exercise the muscles of the whole body!"

"With these iron blocks, it's enough to build a complete power room!"

"Isn't it a waste to just carry the weight on them!?"

Hearing this, Liu Erlong frowned and muttered thoughtfully:

"Muscles?"

"Power room?"

No, now Douluo Continent is so original!

Cao Kun was a little surprised, then stretched out his hand to Liu Erlong and said:

"Muscles are these places in our body that emit strength, and our exercise is ......"

Cao Kun explained according to the knowledge learned in his previous life and Liu Erlong, during which he also did some postures to exercise muscles, which he saw from some hardcore videos.

There was a time in his previous life that he was obsessed with iron, so he was more familiar with these.

When he was a child, he relied on these iron knowledge to exercise.

"And the power room is a place to temper the body and enhance strength."

"For example, we can thread these pieces of iron with a stick, and then we can work those muscles when we lift it."

"And if we put these pieces of iron together like this, we can work these muscles......"

"And ...... like this"

The more Cao Kun spoke, the more excited he became, and Liu Erlong, who was listening next to him, also lit up his eyes.

"That's it, Sister Erlong."

"If we build a strength room like this, it will definitely enhance the physical fitness of the students."

"It's definitely a lot more useful than just carrying weights!"

After Cao Kun finished speaking, Liu Erlong looked at him as if he was looking at something magical.

"Quint, how did you know this?"