Lu Yu sighed, then turned his head to look to the side and said, "Next." ”

"Young Master!"

Xiao Ruan was a little angry, and grabbed Lu Yu's body tightly with both hands, as if he wanted to rub him into his body.

Lu Yu smiled bitterly, and then said: "On the surface, these three things can be regarded as simple and rude, but there are actually some connections among them, one is loose and one is tight, which can be regarded as in line with some truth, so ...... If I don't do the second item immediately, it will cause some problems in my body. ”

"The second item?"

Facing Xiao Ruan's doubts, Lu Yu pointed to the sand pile that looked like a child playing with it, and said, "That's it, send me over, I really don't even want to move a finger now." ”

Xiao Ruan gritted her teeth, and then decided to believe in her young master again, but this time she learned to be obedient, she didn't have to wait for the young master to shout to stop, as long as she thought that Lu Yu was a little unwell, she would immediately rescue him, and then ...... Ruined this nasty place!

The second, a flat pile of sand, which looks like simple sand inside, is four meters square and surrounded by a barrier made of heavy metal.

Xiao Ruan gently placed Lu Yu on top of the soft sand, and then let go......

But in the next moment, Lu Yu's body directly 'trapped' in, and the speed became faster and faster!

Quicksand.

And than ordinary quicksand, it flows faster and has stronger suction.

Xiao Ruan was stunned for a moment, and immediately tried to pull Lu Yu out of it.

Lu Yu waved his hand and said, "Wait, this shouldn't be able to drown me completely." ”

Xiao Ruan hesitated, and at this moment of hesitation, Lu Yu's entire body had been sucked into the quicksand.

But as Lu Yu said, it won't drown him all, so ...... Now the quicksand didn't move, only one of Lu Yu's heads was exposed.

"Look, I'll just say it shouldn't be a problem. ”

Xiao Ruan nodded, and then said, "Then how are you feeling now, young master?"

"Well, I don't ...... it."

Halfway through his words, Lu Yu clearly felt that the sand buried in him was gradually getting hotter, as if something was warming them up.

His brow furrowed immediately, and he thought to himself that he was going to have a stew, right? to stimulate his body with high temperatures, or to exercise his body's tolerance to the heat?

But this is the point he is least afraid of.

After all, he was once thrown into that ancient Dading in the academy, and he underwent endless fire tempering, and instead of burning him, he was allowed to partially fuse his body with several different fires, although it did not allow the body itself to have the ability of fire, but the ordinary burning was really nothing to him.

If it was just the heat, the workout would be really useless for him.

He pursed his lips and was about to say to let Xiao Ruan pull him out, but Yu Guang saw that next to this sand pile, there was also a relatively hidden disc parallel to the ground, which was like a patterned relief on the ground, which was integrated with the ground and was difficult to find.

Blinking, Lu Yu said, "You go to the place where the disc is embossed and see if you can find a handle or something." ”

Xiao Ruan immediately walked over, carefully inserted it on it, and then found a small gap, and with a light button of her fingers, a handle was directly pulled up by her.

Lu Yu's eyes lit up and said, "Spin it and give it a try." ”

Xiao Ruan nodded, and then began to spin.

Then Lu Yu felt that the sand in this pool moved, and it was a slight tremor.

This tremor became more and more intense, and every tremor would hit Lu Yu's body, but it was not the violent impact, but ...... Drove every inch of the flesh and blood on Lu Yu's body to tremble with it.

Lu Yu was stunned for a moment, this trembling ...... Things like the 'massage chairs' I've seen in my previous life rely on tremors to relax the body as much as possible, and let the stagnant blood circulate and disperse, and also relax the tense muscles. The so-called pain is not passed, pain is not passed, is the eternal truth, as long as it is passed, the circulation of blood and hormones, will solve most of the diseases in the human body.

This is one of the simplest massage therapies, and for this, Lu Yu clearly remembered that in his previous life, those Western countries, in the case of extremely developed medical standards, still didn't know, didn't understand, and didn't understand.

But this kind of shaking ...... It's a bit too exaggerated! It not only made Lu Yu's flesh and blood vibrate, but even the bones vibrated with it!

Lu Yu couldn't say for a while, is such excessive vibration really a good thing? The vibration of the bones is likely to cause fatigue of the bones, making them more fragile.

But...... Finally, he didn't have to suffer, and he was smashed too hard by an iron tool before, and now this kind of shock really makes him very comfortable.

But in the next moment......

Burst!

Almost at the same time, all parts of the body, all parts of the body...... It should be a needle! A very small needle, I am afraid that it is thinner than a capillary, suddenly appeared, stabbed all the places in Lu Yu's body, pierced deeply, and even ...... Penetrate most of it!

In addition to several important organs in the torso, even Lu Yu could feel that his intestines were also pierced!

The sudden pain made his eyes widen suddenly, but he really couldn't even scream, just as he was about to use his body to resist...... In another moment, all the needles suddenly retracted as if they had never been there.

The fact that Lu Yu instantly turned into a hornet's nest became known only to him.

But it was precisely because those needles were so thin, coupled with the high temperature, coupled with those non-stop, as if they were deliberately paralyzing his whole body, that Lu Yu did not lose a trace of blood and energy.

At the same time, Lu Yu felt that his whole body had a very comfortable feeling after the pain, which ...... It's really weird.

But this is really effective! Lu Yu instantly understood that the function of those needles was to destroy, destroy all the muscles in his body, the original structure of all the meridians, and then ...... Those vibrations and heats allow the body to repair quickly, and reintegrate those damaged places, as if a room was torn down and rebuilt.

It's like knocking down a bunch of irregular bricks and putting them back together neatly to make it more stable and stronger.

Even Lu Yu could guess that there was either any medicine in these sands, or there was some kind of energy that could speed up his own repair.

In a nutshell...... This is a process in which Lu Yu's body is constantly injured and repaired.

This process is also easy to see during normal exercise, such as muscle strain after overworkout. As we all know, muscle acid is due to the accumulation of lactic acid in the muscles after too strong exercise, and the muscle pain is due to the strain of the muscle tissue itself, to put it bluntly, those muscle cells themselves are broken, and then they are repaired and become stronger. Therefore, there is a saying that 'sour flesh grows, pain grows strength', and exercising to the point of soreness will allow the body's ability to be quickly improved.

And now, the entire environment of this sand pile is to speed up this process to the greatest extent, so that the body is constantly destroying and rebuilding...... Reach a new life!

It's just that it's too tragic.