He was becoming less and less aware of the passage of time, and when he appeared in the backyard, his family had already been waiting for him for a long time.

"How did you know I would come out today?" Lin Xingchen asked curiously.

"I was the one who notified your family!" A rough voice came from the crowd.

A huge creature appeared in front of him. Seeing the creature in front of him, Lin Xingchen politely performed a chest-touching salute.

"Sir Snake, long time no see!"

"Good day, Lord Xingchen! When I was wandering in the long river of time and space, I observed that you would appear today, so I took the liberty to inform your family." The Time Serpent Snake first greeted and then explained his behavior.

"You're welcome. I have gained a lot from your gift back then. I wonder if Lord Snake is coming here this time to ask me to repay the promise we made back then." Lin Xingchen went straight to the point. They were all acquaintances, so there was no need to beat around the bush.

Back then, the Time and Space Serpent saw that he was not bound by fate, so he invested in himself in advance.

The experience and knowledge he provided provided a lot of help to Lin Xingchen, and it was not provided for free at the beginning.

Instead, he offered to help him when he was able to, and his father Kahn directly brought him to agree to this.

The Time and Space Snake swam freely in the long river of time and space. It would be impossible to see it if it didn't have a friendship with its father Kahn.

"I did make a promise back then, hoping that you would help me when you were able."

"My idea is this. In this Esidero world, beings like me have been trapped for too long."

"I also want to take a look at the starry sky. I wonder if you can help me do it." The huge eyes of the Time and Space Snake stared at Lin Xingchen.

"Let me ask the world consciousness for you! After all, you are subordinate to it!" Lin Xingchen said and had a communication with Esdro.

This wait lasted for more than an hour. Of course, Lin Xingchen and Esdro ​​had been talking about how the world worked from the beginning, and he only spoke at the last moment.

"Esdro, what is the price if you want to make the Space-Time Serpent or the Earth Bear break away from your rules?"

"The world needs some special beings to help it run, and the existence of guardian beasts is a product that came into being. As for how to let them escape the authority of the rules."

"Since you have already created your own world, you should understand this problem. These things are actually very simple!"

"I no longer have the Space-Time Snake, but I can have the Space-Time Dragon or the Space-Time Wolf. The carrier of the rule substitute does not necessarily have to specify an individual or species." Esdro ​​said lightly.

"Why did they seek your help?" Esdro ​​asked curiously.

"Yes! The most important thing for a living being is freedom. Although their life span is bound to yours, they have also lost their extremely precious freedom."

"In fact, whether it's the Earth Bear or the Space-Time Snake, they all want me to help them break free from the constraints of the rules."

"That's easy. If they are willing to leave me, I just need to find another replacement. It would be even better if they have a replacement they like!"

Lin Xingchen called the Earth Bear who was sleeping under the tree hole and repeated Esdro's words to them.

"Once you break free from the constraints of the rules, you will gain freedom but you will also lose your eternal life. You must think carefully before answering!"

"Thank you, Lord Star. I have made up my mind. Even if I fall into the starry sky in the end, I still want to see the boundless starry sky!" The Time and Space Snake said excitedly.

"Lord Xingchen, that's what I meant. If possible, I would like to recommend an old friend who is interested in replacing me." Gale, the Earth Bear, also expressed his desire for freedom and recommended his friend to take over.

"Okay! Think about it carefully these few days. The world consciousness will contact you in three days and you can talk to each other then!"

After having fun with his family for a few days, Lin Xingchen and Christian came to the Sky City again.

Today, the Sky City has stayed above the Maple Leaf Empire to facilitate the transportation of supplies and the dispatch of personnel.

Over the past one hundred and thirty years, both the Titans and the Dragonites have been integrated into the world of Esdro.

When the technology of scientific civilization and the technology of magical civilization were integrated, sparks that caught everyone's attention burst out between them.

The formerly clumsy and rough trains have now become delicate and beautiful with the help of the dragon people.

Not only the appearance has changed, but also the inside has undergone earth-shaking changes, including the elves, dragonmen, goblins, and demons from the demon world.

The highest masterpiece of cooperation among all races appeared in the Sky City. With the help of the two major energy centers of the Sky City, the Dragon People provided the greatest technical ideas, and the elves used their own designs on magic patterns and magic arrays.

The goblins are all engineering geniuses, and their ability is to make the things on the blueprints materialize, while the demons act as lubricants and mobilize all their abilities.

There is a very advanced intelligent center in the entire sky city, which monitors every corner of the city.

The constant flow of elevators up and down and the energy transmission between various machines, these brain-wracking problems have not been overcome one by one.

Their masterpiece is actually a cannon, which was named the Energy Cannon after all the designers voted.

The name represents its ability. It can destroy a planet with one shot by gathering energy.

The more Lin Xingchen looked at this sci-fi weapon, the more he liked it, so he proposed the idea of ​​building one.

However, this idea was rejected as soon as it was proposed. The reasons were very simple. The first one was the energy issue.

A full-power shot requires at least half of the energy of the entire Sky City, and a long period of repair is required after each shot.

The second problem was that this sky city could not accommodate two energy cannons. After hearing the explanation, he did not think much about it. Since the expert said it was not possible, he would listen to the expert.

The previous Sky City could only be described as a metal building suspended in the sky. It looked spectacular and as a tool prepared for War II it could be described as quite good.

But now it is different after the transformation. In addition to the enhanced firepower, it is more like a city for people to live in.