The day Su Huan came to Thunder Fortress City happened to be the end of the year.

It is also the day before the New Year.

Thunder Fortress City is filled with a festive atmosphere.

A snowflake fell on the back of his hand.

Su Huan couldn't help but look in a trance.

It's New Year's again.

Su Huan vaguely remembered the last New Year, when he had just returned to Black Light Castle from the Grizzly Bear Forest.

At that time, I had just become a master for a short time, and it was only a month or two when I was full.

In this way, it has been more than a year since I embarked on the road of mastering.

In one year, he has grown from an unknown newcomer to today's senior professional level.

And it's not an ordinary senior professional level, but a super horror species, an almost invincible existence in the senior professional level.

This growth has been frighteningly fast.

"This is the second year of my career as a master, and my goal is to become a master master." Su Huan secretly cheered himself up.

"Wait for me, teacher, sister, I will definitely return as a strong man when the third nest disaster comes, protect everyone, and protect the entire Black Light Castle." Su Huan clenched his palms and walked towards this city full of opportunities and challenges with the snowflakes.

Gradually, his figure became blurred in the wind and snow.

……

Unknowingly, Su Huan had been in Thunder Fortress City for half a month.

Su Huan's understanding of Thunder Fortress City, a giant city with a population of more than 50 million, has gone from ignorance at the beginning to a little bit in all aspects now.

After Su Huan came to the Thunder Fortress City, the first thing to solve was naturally to live.

A dignified senior professional master can't sleep on the streets.

However, for legal residents with permanent residency, accommodation is nothing more than a matter of payment.

And Su Huan is not short of this little money, even if he was fined hundreds of millions of dollars last time, he still has hundreds of millions of thunder coins left at this time, which is enough for him not to worry about money in daily use.

However, due to the newcomer.

Su Huan did not rent a residence for the first time, but temporarily lived in a hotel like in Gangzhi City.

I am going to make plans when I am familiar with the environment in the future.

Since I live in a hotel, the training of my pet has become a problem.

Although the hotel also provides training venues.

But those pet training grounds, not to mention the small area, there are still a lot of people.

It is not prepared at all for a terrifying pet like Su Huan, a professional-level master.

At most, it is capable of training dangerous species that are not strong.

This also made Su Huan have to look for a training place for pets on the first day of staying in the hotel.

Luckily, Thunder Fortress City not only has a large population, but also has an extraordinary range of facilities.

Su Huan directly found a nearby pet training dojo to conduct the regular training of the pets.

These fifteen days.

Su Huan naturally couldn't spend all his time on pet training.

He had more pressing things.

Collect the metamorphosis materials needed to harness pets.

These days, Su Huan has indeed found several materials that can be used.

But that price is not something that Su Huan, whose wallet has shrunk significantly, can afford.

No, Su Huan could only be forced to start a business-making model, and it was fruitful.

The most direct manifestation of this is that his funds have multiplied tenfold in fifteen days.

Su Huan originally planned to use some of the knowledge of the old dragon code to make a profit.

But when he did market research to find out which products were the best-selling in Thunder Fortress City.

Accidentally passing by an energy crystal shop, the price of various energy crystals made Su Huan's heart move, and he thought of something.

After the energy-absorbing tree transformed into an energy-absorbing tree dragon, a series of abilities of the energy-absorbing tree dragon have been greatly increased.

Among them, a certain ability of the energy-absorbing tree dragon is the root of Su Huan's association.

The Energy Absorbing Tree is capable of absorbing a large number of ordinary energy crystals, producing high-energy crystal fruits made purely of energy, and can control the shape of the fruit to grow in the form of blocks or spheres.

These high-energy fruits are just another kind of high-energy crystals.

The price of ordinary energy crystals and even impurity energy crystals is extremely low.

High-energy crystals are highly valuable due to their scarcity in nature and their own particularities.

Purifying ordinary energy crystals into high-energy crystals is something that is difficult for ordinary plastic energy controllers to do.

The reason why the energy-absorbing tree dragon was able to do it was because of its special ability.

Not only can the primordial extraction of the phagocycing system's energy technique be extracted, but the pure energy in the impurity-rich energy crystals can also be easily extracted.

Su Huan knew and acted together, and immediately bought a large number of residual energy crystals from the energy crystal store to test them.

Finally, it was determined that the high-energy crystal block was formed through the residual energy crystal, and the profit difference was one or twenty times.

Moreover, the transformation efficiency of energy-absorbing tree dragons is extremely high.

Even if the energy-absorbing tree dragon only spends five or six hours a day transforming high-energy crystals.

Su Huan's net income also exceeded 100 million thunder coins.

In just half a month, a billion fortunes have been accumulated.

This also deducts the time it took for Su Huan to find a way to sell the high-energy crystals.

In fact, Su Huan can make a lot of money as long as he throws out a little knowledge of the old dragon classics, but the uncertainty and danger of making money in this way are even higher.

It's better to make money by selling high-energy crystals.

High-energy crystals are scarce strategic resources that are in short supply.

Whether it is pet cultivation or strange things manufacturing, energy supply and other fields have great utilization value.

And often in short supply.

Through the investigation, Su Huan set his shipping price one or two percentage points lower than the market price, and easily earned more than one billion thunder coins in cash through several large customers.

One billion thunder coins, and I'm afraid that ordinary super horror cubs that are not too rare can buy two or three.

To this end, Su Huan also set up a high-energy crystal sales company, Tianyun Company, which is responsible for selling high-energy crystals.

The name is directly copied from the name of the Black Lantern Fort Tianyun Trading Company.

Su Huan, who once again had a large amount of money, began to search for traces of various dragon materials.

Among them, the materials required for the secondary transformation of the Crystal Dragon, the Treasure Hunting Dragon, the Light and Dark Hime, the Shadow Bear, the Mud Dragon, and even the mature Transforming Basilisk Dragon are the most important.

The path of transforming the Basilisk Dragon into a dragon again has long been unsealed in the Old Dragon Codex.

In addition, the cultivation of the two-headed bloody tyrannosaurus leader is also imminent.

Compared to the Geomorphic Dragon and the Shadow Bear, they need to transform into a dragon before they can form combat power.

As long as the two bloody tyrannosaurus dragon leaders are cultivated in the growth stage, they will immediately be close to the combat power of the super-level horror species.

At this time, the two young dragons were already in the early stages of growth.

The size is already taller than Su Huan, and the huge size advantage has been initially revealed.

The two young dragons who have entered the early stage of growth and have mastered the ability to cultivate all races' abilities and skills have been able to steadily suppress the second-level horror species in the complete stage in terms of combat power.

The young dragon's racial talent has also begun to emerge.

Su Huan collected a large number of materials, and according to the secret cultivation method of the bloody tyrannosaurus clan in the old dragon codex, he configured a variety of secret medicines for the two young dragons to mix.

The growth rate of the baby dragon is very fast.