In this way, in the three years before the supply in the shield was exhausted, Zhang Fan used his previous life and these years of cultivation experience in the shield to do his best to improve his cultivation with the highest efficiency.

Virtual scenarios for practical exercises are not limited to some of the scenarios experienced not long ago in this life. It also includes some scenes encountered by Zhang Ruzhen in his previous life's countless experiences, and replaces them with his own to deal with them to exercise his skills and tactics.

Zhang Fan did not rashly choose other scenes in the shield, such as Lintian Palace City or Zhenwumen Yunshan Sect and the like, because Zhang Fan once again went to the Lintian Emperor's Palace and found that the opponents there and even the way of fighting had some changes, which shows a problem: the virtual realm of Qiankun in the shield is not an "omniscient now" magic at least at this time, and it cannot truly simulate everything in this world. Only the opponents and scenes that you have encountered in the past can be simulated in the most realistic way.

Zhang Fan was also very selective when choosing some scenes and battles that Zhang Ruzhen had encountered in his previous life. Those who are too difficult or too easy to suit themselves are excluded. Those who touched their own mood knots were also excluded, and the focus was on how to deal with the conspiracy and barriers such as organs and poisons. Because it is obvious: Zhang Fan can be sure that even if he only has the cultivation of the inner gate at the beginning or so on the bright side when he goes out, the actual combat power realm will reach the top of the low-martial world, and there will be very few people or forces who can threaten him in frontal combat, and if he can't resist head-on, he can also fight or run. However, the conspiracy of various organ poisons is the biggest trouble.

Zhang Ruzhen had faced the most difficult test of the poison back then, that is, the time when he broke through the secret path of the Yunshan Sect, and through another experience, Zhang Fan also began to sum up a lot of experience: poison is actually not the most difficult to deal with, the most difficult to deal with is actually some traps of the captive type. Secondly, there are some traps of combustion, combustion and toxic smoke mixture. If it weren't for the fact that I now have some unique means, I may not be absolutely sure to get out of some predicaments such as iron houses, steel bells, and broken dragon stones.

In addition, Zhang Fan also found that cultivating in a fantasy scene like this seems to be able to maximize his spiritual power and even internal force use skills.

In this way, after cultivating in the illusion of how to fight the predicament for about three years or so, Zhang Fan was surprised to find that his cultivation speed was really not slower than before after entering the Outer Gate Extreme Realm, and because the cultivation principle was more appropriate, it had accelerated to a certain extent. Almost every year, he improved by one grade, and in the first year, he completely opened up the second vein of Ren Du and entered the realm of the first grade of the inner gate, and in the next two years, he cultivated to the level of the third grade of the inner gate and was close to the peak in the later stage. The growth of spiritual power seems to be slow after entering the twentieth order, and the three-year cultivation has only broken through to the twenty-first order, and it is estimated that it has entered the late stage of the twenty-first order, and still has not entered the twenty-second order. This doesn't seem to be strange, according to Zhang Fan's anecdotes: that realm is the realm where the immortal cultivator has officially entered the realm of the basic monk level, and without the assistance of some specific chances, pills, and methods, it is almost understandable that it is almost difficult to further improve.

Counting up, from the very beginning of the recovery of drug expulsion, to now entering the realm of the inner gate of the three grades of cultivation, twelve years have passed in the shield. Today's Zhang Fanyi has also changed from a teenager to an adult in his early thirties. Perhaps only by breaking through the inner gate realm and entering the realm of transformation or immortal cultivators within ten years can he become younger again because of the increase in his lifespan.

"It's time to get out of the customs! I wonder how Xia Yumeng and the Liang clan are doing now?" Zhang Fan suddenly asked solemnly to the instrument spirit in the middle of the shield.

"But ten years still seems to be a bit insufficient, are you sure to let Xia Yumeng out of the customs now, and learn about some of the situations in which she is tested in the environment? Liang doesn't care, it's just that I think if I go out with you now, I can't deal with even the slightest risk... ”

Hearing this, Zhang Fan still chose to go out of the customs first, solve the dangers and problems that he might face outside, and then talk about other things.

In this way, after being fully prepared and covering his whole body with the mud that had been prepared long ago in addition to the armor, Zhang Fan flashed the Qiankun shield in the blink of an eye with the short sword in his hand, and the internal force of his whole body mixed with some of the remaining water vapor was also released as much as possible to form a protective layer.

When Zhang Fan just flashed out of the Qiankun shield and came to the outside of the shield, the fierce heat wave had already hit at the fastest speed, the flames and the blazing wind made the water vapor condensed outside his body seem to have a huge explosion in a very short time, the internal force could not resist the fierce heat wave outside, and the damp soil outside the armor also seemed to be burned dry and hot in a short time. Immediately afterwards, the armor on the entire body also heated up in a short period of time.

As expected, he did encounter the worst-case scenario: the Heavenly Camp of the Great Xia Dynasty found the Qiankun shield he was hiding in these days, and placed it in a prepared iron-making blast furnace. This blast furnace also has an extraordinary blower device, although it may not be able to compare with modern steel-making furnaces, but it does not seem to be able to resist the mortal body in the range of low martial arts.

Even though his eyes were closed, and he had prepared to apply mud to the outside of his eyelids, and used a shield to block the hot wind like hell, his eyelids quickly felt the heat.

However, just when the mighty flames and hot gas broke through all the defensive means prepared by Zhang Fan in about two or three seconds, and were about to bring a deadly threat. In this short period of two or three seconds, Zhang Fan also launched three attacks with the fastest speed with his spiritual power perception.

The first blow, with the short sword slashed out with all his might, the body's outer gate strength and condensed sword qi were integrated, relying on the strength and energy output that was actually equivalent to more than seventy times that of ordinary people in the inner gate five-grade realm, and the short sword was slashed on the hard wall not far away. The short sword that was found with the Qiankun Shield did indeed show an extraordinary ability, cutting out a gap that was one inch long and three points wide and seemed to be like the blade of the sword

But even then, it was only a gap in the wall, and the hot wind rushed out in an instant, and it was still far from being able to escape. It's clear: the furnace seems to have some reinforcement on its perimeter as well.

In the second blow, Zhang Fan wrapped the edible oil in mud and placed it in the gap, and used an ultra-high level of spiritual power to induce the internal force to vibrate violently and heat up, and ignited from various positions inside at the same time, so that the edible oil that could not explode exploded like explosives.

In the third blow, the palm technique upgraded from the thundering palm controls the sound waves with the internal force of vibration, but it is not the previous infrasound, but a high-frequency ultrasonic wave in the direction of concentration, and the violent vibration is accompanied by a forward palm blow, hitting the place where it has suffered two attacks before.

Under the continuous blows in the past two or three seconds, the iron-making furnace that had been reinforced was suddenly blasted open a gap about half the size of a body. Zhang Fan also broke out of the trap in the hot armor at this last moment.