Time flies, and in a blink of an eye, Xu Mu is already ten years old, and Xu San has not checked his son's spiritual root in the past five years, so he doesn't know that at this time, Xu Mu can't find any trace of the spiritual root in his body.

It is true that on the one hand, after the age of ten, the spiritual root will become a completely hidden existence in the monk's body, and on the other hand, it is because Xu Mu's spiritual root has already successfully turned into a blood-red one the day before his tenth birthday.

On the night of his tenth birthday, this blood-red spiritual root disappeared into Xu Mu's body after a sudden shock.

"Father, this city wall is so tall!" Xu Mu said with some amazement as he looked at the huge folding fan gate in front of him.

Over the past year, Xu San and Xu Mu have been living in the uninhabited wilderness, but they haven't seen half a figure. The population had not recovered from the great migration that year.

Even if you can occasionally see some villages and towns that were once inhabited, they are already empty by this time.

Lincheng, a monk's city that was already famous before the Great Migration, has actually recovered to its original grandeur after ten years of development.

After all, in this era, cultivating immortals has completely become the main theme, and the four spirit roots and five spirit roots monks who did not step into the immortal path before because of qualification problems have also become the main force of new monks.

Many of them have already become foundation-building monks in the past ten years!

Of course, this is only a few people who are extremely talented and have the money to buy the elixir, and for most people, they still have to work hard to gather enough spirit stones before they can start cultivating immortals.

The monks of the Four Spirit Roots were more miserable because they still needed to buy the Tonifying Elixir. Therefore, the current Nantian Realm cannot actually be said to be a mortal, and there are still many people who have not yet stepped into the path of cultivating immortals.

If these people want to earn spirit stones, of course, they can only get them from the hands of monks, so some big monk cities, Hefang City, have become the main gathering places for these people.

Walking into Lincheng, this huge city, the first feeling to Xu Mu is that it is noisy, and secondly, there are many people.

To be honest, the number of people Xu Mu has seen in his life may not be as good as the population of a city in Lincheng. Looking at this endless stream of pedestrians, Xu Mu was a little excited.

In the next half hour, Xu San heard the most question, which was, "Father, what is that?"

Of course, the freshness of children comes and goes quickly, although ten-year-old Xu Mu looks a little old-fashioned after the wind and sun along the way, and probably because he eats a lot, he looks a little "big".

But in general, he was still a child.

"Father, how long do we have to go, we can't fly, just like the last time you took me to fly. Xu Mu was very bored, and the things around him had become a bit uniform in his eyes, and they were not as good as the scenery in the wild.

Xu San was also a little dumbfounded when he heard this, and said: "Don't talk nonsense, in this city, only monks above the Dan stage can fly, let's walk in peace!"

"Father, aren't you just in the Dan period?" Xu Mu was even more puzzled.

Xu San explained helplessly: "Of course I'm not, and you are not either, okay, if you don't leave, I'll go eat delicious food alone!" After speaking, Xu San accelerated and ran forward.

Seeing this, Xu Mu shouted dissatisfiedly: "Dad, you are playing Laipi again, so you quickly followed." ”

After a short time, two running figures stopped at the door of a tall building.

"Father, what are we doing here?" asked Xu Mu, who was a step late, looking at Xu San on the side with some confusion.

Xu San looked back at his son a little depressed, to be honest, if he hadn't stared at Xu Mu for twelve hours a day along the way, he would have wondered if his son had been dropped.

Xu Mu, who had not yet cultivated, in terms of the strength of his physical body alone, was actually close to that of a Qi Refiner in the Foundation Building Period, and his physical body was stronger than that of a ninth-level Qi cultivator. The only people who can compete with their sons in the flesh are those rare body refiners.

What if Xu Mu also refines his body in the future? Xu San's eyes had some hope, but it dimmed for a moment. Whether it is refining qi or refining the body, it needs the support of the spiritual root.

On the day Xu Mu was ten years old, Xu San tried to let his son practice his "Aoki Decision", but it turned out that it was impossible.

The spiritual root transformed by the tonifying elixir can only be built into the monk's Dao foundation, but cannot help the monk sense the spiritual power of this attribute and absorb it.

Xu Mu's defeat seems to be an inevitable result.

"Father?" Xu Mu shook Xu San's body and shouted.

Xu San was pulled back to reality by this shake, glanced at his son, he smiled gently, and said: "I'm sorry, my father is distracted, here, it is the Immortal Mansion under the Immortal League, and all monks who plan to live here for a long time need to come here to register, or buy a place to live." ”

"That's it......" Xu Mu didn't know what population management meant, and at this time, he just nodded and didn't say anything more.

After a short time, Xu San took Xu Mu into the hall of the Immortal Mansion, and after crossing the screen, there was a simple case, and a monk was sitting behind the case with his eyes closed, as if he was cultivating.

"Hello fellow Daoist, our father and son have been living in the wilderness, and this time they came to Lincheng to live permanently, so they came here to register. As he spoke, Xu San nodded slightly towards the man behind the case.

"Hmm...... Report your name, your cultivation, and where you lived before. The man still said with his eyes closed, but it seemed that he was slowly finishing his work.

"In the next called Xu Shan, in the later stage of foundation building, this is Xu Mu, the son of the contemptible people, who has just turned ten years old and has not yet cultivated, and lived near the Nanhuang swamp before. Xu San had already instructed Xu Mu that the two of them went out, and for the sake of safety, they couldn't use their real names.

If it weren't for Xu Mu's urgency to call Xu San's name wrong, he would have wanted to change it more thoroughly. Similarly, in order to allow Xu Mu to react to others calling him every time, he just changed it to a homophone.

"Xu Mu?" The man seemed to think of something when he heard this, looked up at Xu Mu, his eyes were a little burning, and said, "You are here for the test of Lincheng, right? What qualifications does your son have?"

"Qi Yu senior, Xu Mu is a single wood spirit root, so he is named Xu Mu. Feeling the faint aura emanating from this monk just now, Xu San only realized that the person in front of him was actually a monk in the Dan stage!