Thinking of this, Duan Fei immediately calmed down and thought carefully, slowly planning the use of these evolution points.

At present, his strength and agility are all level eight, and these two attributes are the most basic existences, so most of the evolution points, Duan Fei will mainly ascend to these two, in addition to strength and agility, Duan Fei also has a focus on improving, that is, spiritual power.

In the process of confronting the corpse tide, Duan Fei was deeply aware of the importance of spiritual power, and in the face of such a continuous high-intensity battle, while his body could support it, he must ensure that his spiritual power could also be maintained. Physical strength and mental power are like a pair of twins, if either side fails, it will cause the entire group to weaken, so this time, Duan Fei must raise his mental power to a level that is suitable for his current combat strength, he doesn't want to endure that feeling of extreme mental exhaustion and lack anymore.

The most important strength, agility and mental power, these three aspects have been improved, and the remaining evolution points, Duan Fei will use them elsewhere according to the actual situation.

After the rough planning in his mind was completed, Duan Fei began to use a large number of evolution points. Because the number of evolution points was too large, Duan Fei didn't have any worries about leveling up.

The strength went from level eight to level nine, level ten, and soon, Duan Fei raised his strength to level ten.

However, at this moment, when the strength was raised to level ten, the level description of the strength and the required evolution points suggested later suddenly changed, which caught Duan Fei off guard for a while.

"What's going on?" Quietly looking at the line of glowing numbers in front of him, a puzzled expression flashed in Duan Fei's eyes.

When the strength is increased to level ten, a line of words appears after the strength attribute, which reads, "The level is full, is it advanced?" ”

"Advanced?" Leng Leng stared at the prompt in front of him, and after a short period of stunned, Duan Fei thought for a while in his mind, and immediately understood the meaning.

Before the outbreak of the apocalypse, there were such things as electronic online games in the human world, and this kind of entertainment filled almost the entire human society, and it was the most widespread entertainment for the majority of teenagers.

In Duan Fei's memory, when he was a teenager, he liked this kind of online game very much. In online games, there are some games in which weapons, skills, etc. are upgraded in this way, and when they are upgraded to a certain level, they can be advanced and then upgraded.

If Duan Fei's guess is right, the evolutionary system's planning of his physical attributes is similar to this planning method similar to that of an online game.

After thinking for a moment in his mind, Duan Fei slowly calmed down and began to think again.

From the scene in front of him, it doesn't cost much evolution points to upgrade the strength to level ten, but when the full level is reached, it does take a full 200,000 evolution points to evolve to the next level, and 200,000 evolution points to upgrade to the first level, which requires Duan Fei to think about it.

At present, the total number of his evolution points is about a little less than one million, Duan Fei roughly estimated, all the strength and agility will be advanced, about 500,000 evolution points, and there are more than 400,000 evolution points left, after improving his spiritual power, I don't know if he can still have some surplus.

After thinking about it carefully, Duan Fei slowly remade a plan in his heart.

First of all, strength and agility are the foundation, and he did not hesitate, directly upgrading the two attributes to the full level, and then advanced.

At present, there are four levels of attributes, which are represented by "heaven, earth, xuan, and yellow", and each level is divided into ten levels.

After the improvement is completed, Duan Fei's strength and agility are currently at the Yellow Rank level, and Duan Fei's estimate is correct, this time the improvement will cost a total of 510,000 evolution points, and the remaining 450,000 evolution points.

After increasing his strength and agility, Duan Fei began to greatly increase his mental power.

Unlike other physical attributes, the evolution points required to improve mental power are simply several times more than strength and other attributes, Duan Fei remembered that just to go from the first level to the second level, it takes a full thousand evolution points, and when it comes to the fifth or sixth level, for each level of promotion, at least 10,000 evolution points are needed, and when Duan Fei raised his spiritual power to the tenth level, it actually took a full 150,000 evolution points, which not only shocked Duan Fei.

After the full level of spiritual power, it would take a full 500,000 evolution points to advance to the Yellow Rank, and when he saw such a terrifying number, Duan Fei immediately dispelled the idea of continuing to improve his spiritual power. This number is too terrifying, and the total evolution points he has left now are only 300,000 evolution points, which is not enough at all, so Duan Fei doesn't think about it.

After raising the most important points, Duan Fei's consciousness slowly swept through the several options behind him.

The evolution points required for perfect genetic engineering still haven't changed, 10,000 points.

10,000 evolution points were nothing to Duan Fei, so Duan Fei was ready to start the perfect genetic project for the second time.

In addition to perfect genetic engineering, the remaining options are to increase the detection ability and activate the ability that the ability fragments have been successfully collected.

Duan Fei took a cursory look at it, and the evolution points required to activate an ability were a full 100,000 points. Although the number of evolution points required was terrifying, Duan Fei could also understand it.

After all, normal awakened people can only have one ability, and if they want a second ability, unless they encounter some kind of great opportunity, it is impossible at all. So activating an ability is the equivalent of having another ability, and whether the ability is strong or weak, the third ability itself is incredibly precious.

Duan Fei took a cursory look, and although there were a lot of abilities with complete ability fragments, there were basically none of them A-level, and even B-level and C-level abilities were very few, and most of them were low-level abilities without grade.

However, Duan Fei was relieved when he thought about it, an ability like "madness" is the lowest level among mutant zombies, and it is also the most common existence, the more low-level the ability, the greater the possibility of successful collection, so the abilities that can be activated at this moment are all low-level abilities, which is reasonable.

After glancing at these abilities lightly, Duan Fei directly chose to give up and did not activate any of them. Low-level abilities are of limited use, and they are just chicken ribs for him, and Duan Fei already has two abilities, "Devour" and "Blessing", and he doesn't need other abilities for the time being, so activating these abilities is not necessary.

Compared to the activated ability, Duan Fei believes more in the ability generated after the fusion of ability fragments, and it should be that a certain number of ability fragments have not been collected, or for some other reason, this permission has not been activated.

Since there is no need to activate the ability, then next, Duan Fei will also increase his detection ability to the first level of the Yellow Order, and then the remaining tens of thousands of evolution points will be used to open the "Perfect Genetic Engineering!" ”

After a short period of hesitation, 10,000 evolution points were directly deducted, and the "perfect genetic engineering" was started again.