"Could it be because I have cultivated the Pangu Heavenly Book?" Lu Tianyu couldn't help but light up his eyes, and suddenly thought of this possibility.

Without using the battle qi to resist, the thunder could not hurt him in the slightest, and almost no one in the world could do this.

After thinking about it for a long time, Lu Tianyu could only attribute this credit to the "Pangu Heavenly Book", after all, the biggest secret of his body was that he had cultivated this anti-heaven technique.

"Brother, you are wrong, I helped you!" But, at this moment, a rough young man's voice quickly sounded in Lu Tianyu's mind.

"Ah, little demon, why has your voice changed?" Lu Tianyu couldn't help but be taken aback when he heard this, this voice was definitely made by the pupil demon beast, but what was very strange was that its tone changed from a childish child's voice to a rough boy's voice.

"Hehe, I've started to grow, my voice will naturally change!" Hearing this, the pupil demon beast immediately replied with a slight meaning.

"Little demon, you just said that the reason why Thunder couldn't hurt me was because you helped me?" Thinking of the little demon's previous words, Lu Tianyu couldn't help but ask suspiciously.

"Yes, brother, you may not know, I also have another nickname, that is the Thunder Messenger, when I advance to the final level, I can be responsible for the thunder and lightning for the sky, it is no exaggeration to say, when the time comes, all the thunder and lightning in this world will have to obey my orders, how about it?

"Huh?" Lu Tianyu couldn't help but open his mouth wide in shock when he heard this, and he couldn't close it for a long time.

What he didn't expect was that the Pupil Demon Beast would have such anti-heaven magical powers.

Lu Tianyu knew very little about the Pupil Demon Beast, if it hadn't said it himself, Lu Tianyu would have been kept in the dark.

Although as his own contract demon beast, Lu Tianyu only needed to move his mind to enter the sea of consciousness of the pupil demon demon beast and easily detect all its memories, but he did not do so, because Lu Tianyu had already regarded the pupil demon beast as a relative.

No one would be so excessive, and would use divine thoughts from time to time to spy on the thoughts and memories of their relatives, after all, everyone has their own private existence, and doing so is undoubtedly a sign of extreme disrespect for them.

For this, the pupil demon beast knows it well, so as it gradually grows and its mind slowly matures, it is also extremely grateful to Lu Tianyu, which is the main reason why it has never left and is willing to follow Lu Tianyu.

In the heart of the pupil demon beast, he had already regarded Lu Tianyu as his own brother, so when Lu Tianyu encountered a life and death crisis in the past, the pupil demon beast would be so desperate, and did his best to help him resolve it and save him between life and death.

This most sincere relationship between humans and monsters is rare in the world.

"Little demon, so as long as you are here, thunder and lightning won't be able to hurt me?"

"Theoretically, so to speak!" the Hitomi Demon Demon Beast heard this, and immediately replied truthfully.

"Uh, little demon, aren't you known as the Thunder Messenger, why is it just a theory, not a reality?" Lu Tianyu immediately rolled his eyes speechlessly when he heard this.

"Hehe, brother, don't you know, I'm still in the growth stage now, and the thunder mark on my body has not yet been fully formed, only after the thunder mark is completely formed, can I command all the thunder in the world to be used by me!"

"What Thunder Mark?" Lu Tianyu couldn't help but ask curiously when he heard this.

"Brother, you let me out, I'll show you!" "The pupil demon beast immediately replied with a smile.

"Okay!" Lu Tianyu nodded quickly, and with a move of his divine thoughts, he had already released the Pupil Demon Demon Beast.

"Huh!" twisted and deformed, and in front of Lu Tianyu's eyes, a behemoth immediately appeared.

Seeing the pupil demon beast that had grown up, Lu Tianyu couldn't help but open his eyes in horror again, only to see that the demon beast the size of a wolf dog in the past, now, its entire body was the size of a small mountain, and its whole body was covered with dense white hair, and on this white hair, there were still wisps of white free lightning flashing, constantly making a sneering sound.

What's even more terrifying, the small eyes of the pupil demon beast have all turned into fist-sized eyes, and there are strange five-colored lights flashing inside them.

"Brother, look at my first eye!" At this moment, the pupil demon beast shouted.

"Huh!" Lu Tianyu immediately followed the prestige, and immediately saw that the first eye of the pupil demon beast instantly burst out of a thick white thunder lightning, but it did not surge outward, but quickly conjured up a half-missing thunder pattern around its pupils, and this incomplete thunder pattern also seemed very illusory, as if it had just taken shape.

"Do you see it clearly, brother, this is the thunder mark I condensed not long ago!" said the pupil demon beast triumphantly, and immediately moved, and the thunder pattern instantly disappeared into invisibility and was hidden again.

"Little demon, you

Thunder Mark, how can it be completely condensed and formed?" After thinking for a moment, Lu Tianyu immediately asked slowly.

"Hehe, it's very simple, as long as you absorb enough thunder power between heaven and earth!" Hearing this, the pupil demon beast couldn't help but smile slightly.

"So, the previous stout thunder and lightning were absorbed by you?" Lu Tianyu suddenly realized when he heard this.

Previously, when he was hit on the back by the thunder of several arm thicknesses, he obviously sensed that the thunder had entered his body, and he must have been absorbed by the little demon without asking.

"Well, that's right, it's because I absorbed those thunderbolts that I was able to grow, and gradually opened a seal left by my father, knowing about this thunder messenger!"

When Lu Tianyu heard this, he no longer had any doubts in his heart.

What the pupil demon beast said, he had already known before.

In the past, when he accepted the Pupil Demon Demon Beast as his contract demon beast, there were countless strange information in his mind.

Those messages clearly show that from the day the pupil demon beast was born, its parents left countless seals in its body, and these seals will gradually be lifted as the pupil demon beast grows.

Its parents did not do this to harm him, but to protect it.

This is because when the pupil demon beast is born, in its sea of consciousness, it will automatically inherit its parents' various supernatural powers, and these supernatural powers must have a certain strength before they can be cultivated.

If you don't have enough strength and cultivate rashly, you will even be in danger of your life.

Therefore, as a pupil demon and dark beast clan, when giving birth to a cub, they will set up heavy seals in the cub's body, and seal these magical powers, and only when the cub's strength is reached, can it be cultivated.

In this way, there will be no surprises.

"Haha, little demon, there are so many thunder and lightning here, if you absorb them all, can the thunder mark be completely formed?" As soon as he thought of this, Lu Tianyu immediately couldn't help but laugh ecstatically and asked.

Once the Thunder Mark of the Pupil Demon Demon Beast is formed, it will definitely be a great help to Lu Tianyu in the future, and it can be said that there is another powerful dark chess move.

When encountering a strong enemy, if you unexpectedly summon the pupil demon beast and send out a thunder attack, you may be able to turn the tide of the battle in an instant, and it is not known whether defeat will turn into victory.

In this Divine Desolate Continent, only by having enough means of preserving his life can he survive better, this truth, Lu Tianyu has long known, therefore, now, when he is surrounded by strong enemies, what he wants to do most is to improve his cultivation as soon as possible and have enough self-protection power.

However, for monks, improving their strength is not an overnight thing, it must be done step by step, and forcibly rushing to the ranks will only backfire, at least they will go mad and fall into the devil, and at worst they will die violently.

Lu Tianyu is a rational person, he will not do such stupid things that are fueled by seedlings, no matter how anxious he is to improve his strength, when he is cultivating, he will do it step by step, steadily and steadily.

If you can't improve your strength quickly, you have to find a way from other aspects.

The pupil demon beast is its own contract demon beast, and the increase in its strength doesn't mean that its comprehensive strength has improved?

Therefore, Lu Tianyu now desperately hopes that the Pupil Demon Beast will be able to condense the Thunder Mark as soon as possible, and when the time comes, it will definitely become his indispensable right-hand man.

Summoning them against the enemy will definitely be able to achieve unexpected results.

"If you want my Thunder Mark to be completely condensed and formed, you need an unusually terrifying amount of Thunder Power, and the Thunder Power here is still too little to do!"

"Too little?" Lu Tianyu couldn't help but smile bitterly when he heard this, in front of him, the thunder and lightning in this thunder world were completely boundless, and he couldn't see the edge at a glance, but in the eyes of the little demon, he actually felt that it was too little.

How much thunder power does the little demon's thunder mark have to absorb to form?

"Although it can't be completely formed, after absorbing the thunder here, it must be able to condense three-tenths!" Seeing Lu Tianyu's wry smile on his face, the Pupil Demon Demon Beast immediately added.

"Well, three tenths of the way is okay, you hurry up and absorb it, I'll protect the Fa for you!" Lu Tianyu heard this, and immediately nodded with a smile.

"Brother, I'd better continue to hide in your body to absorb the power of thunder, just now I found that there are still many monks here through telepathy between me and the thunder here, I don't want to be seen, lest I cause trouble!" Hearing this, the pupil demon beast immediately shook its head and put forward its own suggestion.

"Huh?" When Lu Tianyu heard this, he couldn't help but be stunned, he didn't expect that after the Pupil Demon Demon Beast grew up, it would suddenly become so smart.

The little demon's concerns are definitely reasonable, as such an anti-heaven demon beast, once it is discovered by other strong people, it will definitely give birth to a strong desire to peep, so as to attack Lu Tianyu and take it by force.

The only safe way is to continue to hide in Lu Tianyu's body and absorb the power of thunder.