Lu Fan saw that the red-robed envoy locked the door, and he didn't know what the red-robed envoy was going to do.

"Stay in there, boy, don't think about it now!" The red-robed envoy looked at Lu Fan outside with a strange smile on his face.

Lu Fan was afraid of being plotted by the red-robed messenger, so he hurriedly used his internal force to open the door, but when he used his internal force, he found that his head suddenly stopped hurting, and his whole body was much more comfortable.

The red-robed envoy outside saw that Lu Fan did not struggle, but consciously used his internal strength, and he said to Lu Fan with satisfaction: "Boy, you are really smart enough, but I advise you not to use internal force to force out." Because although this door is made of wood, due to the special mechanism, staying in this room can consume your internal strength, and I am locking you in it now to test your potential and see how much of your internal force can be stimulated. ”

When Lu Fan listened to the words of this red-robed envoy, he instantly understood that it was also a kind of cultivation to endure pain in this wooden house. When he used his internal force just now, he found that the pain in his body was gone, and he guessed that this room should be used to improve his internal strength.

"I understand, I'm not going to try to break out, I'm going to stay here for more than a week and improve my internal strength even more!" Said one after another.

Although the red-robed envoy was outside, he could still hear Lu Fan's words, and he couldn't help but laugh when he heard Lu Fan say that he would stay in this wooden house for more than a week.

"Boy, don't talk about staying for a week, I don't think you can stay for a day. Every hour in this wooden house, I will increase the pressure control, and then you will feel that although you can use your internal force to resist the pain of your body, but with the transfer of time, your internal strength will slowly run out, and your physical strength will also decline, and you will not be able to bear the pain of your body. ”

The red-robed envoy looked at Lu Fan and reminded: "Don't hold on, if you find that you really can't stand it, beg me to let you out, but if you can't even endure it for an hour, you will be eliminated!" ”

Although this wooden house is used to improve the internal strength of newcomers to the elite cultivation ground, it is also an assessment, if this newcomer can't stay for even an hour, it means that this newcomer's cultivation talent does not meet the requirements of the core training base.

It also means that this newcomer has been eliminated, like the messenger who led the way, he was eliminated here without passing the level.

"I want to know how long Elder Yang has been in this wooden house?" Lu Fan asked.

At this moment, Lu Fan had already used his internal force to relieve all the pain on his body. Although this wooden house can stimulate the potential of practitioners, for Lu Fan's current martial arts cultivation, this wooden house has no effect on him.

This wooden house is only useful for some people who are not very good at internal strength.

If he wants, he can stay in this wooden house for a long time, as long as he has food and drink, he can stay here for the rest of his life. However, Lu Fan didn't want to be so eye-catching, because he was here to find a chance for revenge.

"You said that Elder Yang, he seemed to have been in this wooden house for less than three days a few years ago! But he doesn't need it anymore! The red-robed messenger said.

Lu Fan knew that Elder Yang's martial arts had not yet reached a certain level, so after staying in this wooden house for three days, his internal strength was very profound, and now Elder Yang's internal strength was already very deep, so naturally he didn't need to rely on this wooden house to stimulate his potential.

After listening to the words of the red-robed envoy, Lu Fan knew how long he should have been here.

Before I knew it, an hour had passed, and the red-robed envoy standing outside didn't expect that after Lu Fan stayed for an hour, he didn't let out any painful screams, and when Elder Yang first entered, he kept screaming.

"Boy, I didn't expect your internal cultivation to be very powerful in itself!" The red-robed envoy looked at Lu Fan in surprise and said.

When Lu Fan heard this, of course he was not overjoyed, but shocked.

"Why do you say that?" asked calmly one after another.

The red-robed envoy replied, "When that Elder Yang went in, his cultivation was not as high as your current cultivation, and he kept screaming inside. When his internal force is constantly stimulated, the screams will slowly decrease, but you don't scream at all! ”

After Lu Fan listened to the words of the red-robed envoy, he realized that the original red-robed envoy had already seen that the current Lu Fan was much deeper than the original Elder Yang's internal strength.

"Elder Yang also said that my current internal strength is much higher than when he was at the same time, but I'm not uncomfortable, I just forcibly endured it with my internal strength." Said one after another.

Lu Fan said this and didn't want to be too outstanding, because being too outstanding would definitely be taken seriously by the core of this organization, and it would be dangerous if Lu Fan's identity was exposed.

The red-robed envoy outside saw that Lu Fan's internal skills were so good and his personality was so modest, and his opinion of Lu Fan changed in an instant.

"Boy, you don't have to be too low-key, you can actually use your internal strength to force yourself not to scream, then you are a lot better than many people!"

After the red-robed messenger said this, he walked to the wooden house and pressed a button.

"I see that your internal cultivation is not bad, and I won't waste your time, I will directly increase it by two grades, which can save your time and improve efficiency!" The red-robed messenger said.

After the red-robed envoy said this, Lu Fan felt that the pressure in the wooden house was getting bigger and bigger.

At this moment, Lu Fan already felt the pressure and pain on his body, and he wanted to deepen his internal force to control this pain, but after listening to the words of the red-robed messenger just now, he did not adjust his internal force, and deliberately made his body begin to swell and ache.

"Ah......" Lu Fan began to scream,

The red-robed envoy who was staying outside saw that Lu Fan finally screamed out, and a satisfied smile appeared on his face.

"The boy's assessment of you has really begun, and now you must feel the pain in your body! This pain is unbearable for ordinary people, but for a talented martial arts master like you, as long as you can endure this severe pain, you can stimulate all the potential in your body. It is no exaggeration to say that if you endure the pain for a second, your ability will increase by a second! The red-robed messenger said.

When the red-robed messenger saw the continuous screams inside, he could feel an inexplicable sense of accomplishment.

Lu Fan's screams at the moment were half-truths and half-truths, and he suddenly discovered a strange phenomenon, that is, the pain in his body would slowly disappear without improving his internal strength.

Lu Fan felt that this might be because his internal force was still improved after his body was compressed by the air flow and the pain was without improving his internal force.