"Boss Yu, there are two ways to activate this soldier seed, one is a ranged weapon similar to a bow and crossbow, and the other is a defensive weapon, which seems to be an energy shield. Fearing that Zhang Yu would change his hexagram, Zhang Chengzhong quickly absorbed and fused the soldier seed into his body and shouted.

Zhang Chengzhong himself tends to choose that bow and crossbow weapon, so that he also has the ability to attack, maybe he can slowly change his team positioning in the future, and he is cowardly by nature He prefers to hide behind everyone rather than be at the front every time.

"Choose the energy shield!" Zhang Yu replied angrily, since he decided to give that soldier seed to Zhang Chengzhong, he naturally would not regret it, and had his own deep considerations.

Through these battles, it can be seen that Zhang Chengzhong's tortoiseshell ability defense is certainly strong, but when facing terrifying monsters such as the mutant ant queen and the rat king, he is a little weak and weak, and it is difficult to really assume the role of the team's meat shield.

It is precisely because of this that Zhang Yu feels that it is necessary to improve Zhang Chengzhong's defensive ability, so that Zhang Chengzhong can really stand up and help him share some of the pressure on the battlefield.

The other is that with the memory of his previous life, Zhang Yu already knew that the energy shield inspired by the warrior seed in the body of the mutant rat king could not only protect Zhang Chengzhong himself, but also expand the scope of defense when necessary, and protect Kite Xiaobei and others together, which was very practical.

"Alright, Boss Yu. Zhang Chengzhong was a little depressed, knowing that after activating the energy shield, his meat shield team positioning would be even more unable to get rid of, but after he activated a blood-red light shield and protected his whole person, he quickly showed joy and laughed excitedly.

Double Defense!

If you think about it, this is actually not bad, at least his ability to save his life has been greatly enhanced, and the chances of survival have also greatly increased.

Xiao Hua and the others were a little envious, but they had no opinion on Zhang Yu's decision, knowing that Zhang Yu had made the most reasonable decision from the team.

"Boss Yu, this blood crystal of the mutant rat king is yours!" Zhang Chengzhong took out a blood-red blood crystal from the corpse of the mutant rat king, and quickly ran to Zhang Yu's side to offer treasure.

"This was originally mine!" Zhang Yu glared at Zhang Chengzhong and took the blood crystal of the mutant rat king in his hand.

For this blood crystal of the mutant rat king, Zhang Yu is determined to get it, that soldier seed is precious, but Zhang Yu already has a flame war knife, and he doesn't need it much, but this blood-red blood crystal is of great significance to him.

The whole body is blood-red, which means that this is a fifth-order red crystal!

Having previously absorbed and fused more than 300 blood crystals of ordinary mutant rats, coupled with this fifth-order red crystal, Zhang Yu is expected to break through and promote to the fifth order of red crystals, and then achieve the initial goal of extreme strengthening.

Taking a deep breath and suppressing the excitement in his heart, Zhang Yu immediately cut the back of his hand after healing and recovering from his injuries, absorbing and fusing the blood crystal of the mutant rat king into his body.

Streams of heat stirred in Zhang Yu's body, quickly circulating around his limbs and hundreds of remains, and finally converged into an extremely powerful force, and completely integrated into Zhang Yu's body.

At the same time, I saw that the blood crystal at the center of Zhang Yu's forehead and eyebrows contained more and more blood lines with a double helix structure, becoming more and more dense, and finally connected together, and began to merge with some kind of mystery, and the color became darker and darker, until the whole body was blood-red.

"Red Crystal Fifth Order!

"Feather, congratulations!"

"Congratulations, Captain!"

Xiao Hua and the three of them congratulated one after another, and although the arrogant Li Xunhuan didn't say anything, he couldn't help but give a thumbs up, and some were really convinced.

Zhang Yu smiled slightly, it was naturally worth being happy to be able to successfully break through and advance to the fifth order of red crystal, but at this time, he was a little nervous.

At this time, his physical functions have been strengthened to the extreme, and if he wants to continue to strengthen, he must first stimulate his abilities, otherwise, even if he fuses more blood crystals, it will have no effect.

Zhang Yu also deliberately verified it, after breaking through and advancing to the fifth order of red crystal, he immediately absorbed and fused an ordinary mutant rat blood crystal, but this time only a trace of heat flow was generated in the body, and there was almost no improvement in body functions.

In this way, Zhang Yu has no other choice but to choose to stimulate his own abilities.

"It's time to verify that genius madman's idea!" Zhang Yu's eyes flashed with a strange light, even if he could continue to strengthen, he was not ready to do that, because the mutant monsters he encountered next would only become stronger and more terrifying, and he who had never been able to stimulate his abilities was too much to fight, and the pressure he was under would only increase, even if he had the Demon Butterfly, he was a little unbearable.

Activate abilities!

For the first time, Zhang Yu no longer intentionally resisted, but took the initiative to stimulate, the blood-red crystals on his forehead and eyebrows suddenly became hot, and then a strange picture scene appeared in his mind, his right arm suddenly became extremely thick, and the color of his skin also turned into an evil dark purple, and one by one demon runes appeared, and then rose and burned with a raging purple ** fire.

"Demonic Evil Ability, the ability that is stimulated after the limit enhancement is really powerful!" Zhang Yu's eyes were shining, he was very excited, and he knew that he had fought right.

The genius maniac's idea seemed crazy and difficult to implement, but it turned out that when it succeeded, the rewards were incomparably greater.

In previous lives, demonic abilities were considered to be one of the most top-tier abilities, and only a handful of people managed to activate them, and without exception, they all became truly top-tier powerhouses.

Not only that, Zhang Yu always felt that the demonic abilities he inspired were different from those top-level powerhouses in his previous life, and they were very evil, but what was the difference, Zhang Yu couldn't say, after all, he was quite miserable in his previous life, these were all hearsay, and he had not really come into contact with demonic powerhouses.

But no matter what, Zhang Yu is extremely sure of one thing, that is, the demonic evil energy he has inspired is very powerful, and it is not in vain that he has spent so much effort and energy to realize the idea of that genius madman.

"Boss Yu, what's wrong with you?" Zhang Chengzhong and the others were a little puzzled, after being promoted to the fifth order of Red Crystal, they didn't see how excited Zhang Yu was, but now they noticed the smile in Zhang Yu's eyes that couldn't be concealed.

Zhang Yu smiled, did not speak, stepped forward directly, responded with practical actions, leaned over and picked up the body of the mutant rat king from the ground, stimulated the demonic evil energy, and the purple ** fire burned, and the body of the mutant rat king was burned to ashes in an instant.