Immortality: Starting with a grave, I'm invincible when burying corpses.

But if it really was Mr. Mu who did it, killing so many people at once, his bloodthirstiness is just too terrifying.

It's such a stark contrast to Mr. Mu's usual gentle and refined image.

After the incident with the Qing family, Qing Han suddenly became cautious in front of Mu An. The "composure" he had cultivated over several months disappeared, replaced by an unconcealable tension.

Even though she kept telling herself that Mu An killed people to protect her and her brother, Qing Han still couldn't control her emotions.

Having grown up amidst crises, Qinghan had long developed a habit of doubting everything; he dared not trust anyone except his younger sister.

He reverted to his original self, behaving respectfully before Mu An, not daring to utter a single extra word.

Qinghe was quite dissatisfied with Qinghan's cautious demeanor and complained to him many times about how he could act like that in front of Mr. Mu.

They have known Mr. Mu for almost a year now, and the two siblings have received so much care from him. No matter who Mr. Mu really is, they shouldn't act like this in front of him.

Although Qinghan felt wronged after being criticized by her sister, she still kept all the news to herself and didn't tell Qinghe anything.

While Qinghe was staring at him, Qinghan only said that he had encountered some things recently, was busy all day, and was a little tired, which was why he was acting a little unwell.

Although Qinghe didn't believe it, she didn't press him further. She simply hugged Qinghan's head, telling him not to be so tense all the time and to relax a little sometimes, giving his younger sister more trust.

She has grown a lot in the past year, learned a lot about cultivation from Mr. Mu, and her originally weak body has recovered to the level of a normal person. She has also made a significant breakthrough in the realm of refining essence into qi.

Although her strength was still weak, she could still help her brother a little, so that he wouldn't have to fight alone.

The encouragement from her younger sister greatly inspired Qinghan and further solidified her resolve.

He, as the elder brother, should bear the burden of the darker aspects of life; his younger sister should simply live in the sunlight and need not worry about such things.

……

Time passed little by little, and more than half a year had passed since the incident that happened to the Qing family.

Perhaps realizing how difficult her brother had been lately, Qinghe has become much more serious over the past six months.

Every day, he asked Mu An many questions, and his understanding of the "True Explanation of the Five Elements" technique also progressed rapidly during this period.

If it weren't for the fact that her cultivation period was too short and her accumulation was insufficient, her understanding would have been enough for her to break through to the realm of Qi Refining and Spirit Transformation, which is the same as the Celestial Martial Saint of the old era.

Two hundred years have passed since the emergence of the Five Elements True Explanation technique.

From the old calendar to the new calendar, the world of the Nine Realms has undergone considerable changes.

Over the past two hundred years, under the joint impetus of the Old Celestial Master and the will of Heaven, the proportion of spiritual energy in the Nine Realms has steadily increased.

The primordial energy that once dominated is transforming into spiritual energy through daily evolution.

Even today, although primordial energy remains the most important energy in the world, lakes formed by the convergence of primordial energy have appeared in some places where spiritual veins converge.

The cultivation method "True Explanation of the Five Elements" has also been popularized during this long evolution and has become the first choice for many practitioners.

The origin of the "True Explanation of the Five Elements" is unknown, but it is generally believed that this method of cultivation, which directly points to the Great Dao of the Five Elements, is a treasure bestowed upon the world by the Great True Lord.

In the Nine Realms, almost every genius who is confident enough in their own aptitude and comprehension will try to master this profound cultivation technique bestowed by the Great True Monarch.

Those with slightly weaker aptitude, who cannot be called geniuses, will also study the "True Explanation of the Five Elements" diligently, hoping that one day they can comprehend this profound skill, achieve enlightenment, and reach a higher realm.

It was during this process that some elders from major sects discovered that the "True Explanation of the Five Elements" was not only a technique, but also a complete cultivation system.

The book's explanations of cultivation and spiritual realms can be applied to other cultivation methods.

As the first genius improved his cultivation method by referring to "The True Explanation of the Five Elements", more and more sects joined in and improved their own cultivation methods.

Over the long years, one new technique after another was born.

The "True Explanation of the Five Elements" by Mu An was regarded as the source of the new method, and based on it, a series of cultivation methods more suitable for sect disciples were derived.

Day after day, year after year, the cultivation system of the Nine Realms has undergone a revolutionary change, with the new cultivation system covering the old one.

The four realms of refining essence into qi, refining qi into spirit, refining spirit into emptiness, and refining emptiness into the Dao have become the mainstream understanding in the cultivation world.

However, due to the limited concentration of spiritual energy, no one in the vast Nine Domains has reached the realm of Refining Emptiness and Integrating with the Dao for a long time.

So much so that people began to doubt the existence of this realm.

It was also at this time, on the same day, that two genius disciples of the Daoist sect reached the realm of Refining Emptiness and Merging with the Dao, proving the existence of this realm to the world.

The two geniuses are located in the south and the north, respectively.

One came from the ancestral temple of Taoism, Sixiang Mountain, and the other came from the newly established Taoist sect, Xuantian Temple.

The news caused a sensation throughout the world.

Not long after, Xuantian Temple publicly announced a new cultivation method, claiming that it was open to all and that all races in the world could practice it.

Its name is "Tongtianlu".

With the support of the Xuantian Temple and countless other forces, the Tongtian Record quickly spread throughout the Nine Realms.

As more and more people tried this Taoist esoteric art, the cultivators of the Nine Realms soon discovered it.

Compared to the obscure and difficult-to-understand "True Explanation of the Five Elements", the cultivation of "Record of Heavenly Enlightenment" is much simpler. Not only is the cultivation speed faster, but it is also easier to break through realms than ordinary cultivation methods.

Even more amazingly, even alien races like demons and sea creatures can cultivate this profound Taoist art.

As Xuantiange advertised, the Tongtianlu is inclusive and suitable for almost all cultivators.

In addition, its content is concise, the cultivation speed is fast, and it can also help cultivators break through realms.

Before long, the Tongtian Record replaced many of the original cultivation methods and became the first choice for cultivators in the Nine Realms.

Even the momentum of "The True Explanation of the Five Elements" was overshadowed by "The Record of Heaven".

Even though the Four Symbols Mountain later launched a mysterious technique called "The Book of Destiny," it didn't cause much of a stir and only spread within a small area, unlike "The Record of Heavenly Connection," which spread throughout the Nine Regions.

In fact, the cultivation method that Qinghan and Qinghe initially practiced was also "Tongtianlu".

It was only because of Mu An's request that Qing He revised "The True Explanation of the Five Elements," while Qing Han declined the suggestion to revise it for various reasons.

Mu An did not insist, but gave Qing Han a jade pendant to carry with him.

……

"Sir! Sir! Do you think the realm of Refining Emptiness and Merging with the Dao is real or fake? Why is it that so far only the Four Symbols Mountain and the Xuantian Temple have reached this realm, while no one from other forces has been able to reach it?"

"That is true, but the time is not yet ripe. In a few more years, someone will arrive."

"Then why did you ask me, Qinghe, to switch to studying the 'True Explanation of the Five Elements'? The cultivation of the 'Record of Heavenly Enlightenment' is clearly easier. The 'True Explanation of the Five Elements' is really, really difficult. I feel like my brain is going to break down from studying it."

"The Dao cultivated by the Tongtian Record is not one's own. The technique is indeed a good one, but the person who created it had ulterior motives. If you want to see a wider world and stand at a higher level in the future, the Tongtian Record is not suitable for you."