Even if the consciousness body stays in the storage space for twenty days, Lu Yu also feels that he is about to go crazy, people are social animals, and they are alone for a long time, either they have mental problems or they are savages, but unfortunately Lu Yu is neither, but in order to improve his cultivation, he can only learn to adapt to this loneliness.

When Lu Yu wanted to practice archery, he found that the storage space was a little small, and the distance of forty meters might indeed be a more suitable distance for ordinary people, but for the range of the black catfish bow in Lu Yu's hand, this distance was not even one-tenth.

Even if Lu Yu thought about the two diagonal distances of the cube, it was only less than 70 meters, which was still less than one-tenth of the range of the black catfish bow.

The special space on the system panel can be upgraded, but Lu Yu doesn't want to waste valuable skill points on it.

In the end, Lu Yu thought of a seemingly compromise solution, ignoring the issue of range for the time being, practicing archery skills at a distance of 70 meters, and when his cultivation was improved in the future, the storage space would naturally increase.

The days passed like this, if someone observed Lu Yu now, they would find that Lu Yu would open his eyes once after lying in bed for half an hour, and then continue to sleep, if this situation was really discovered, it would not make people think that Lu Yu had insomnia.

In addition to practicing sword skills and archery skills, Lu Yu in the endless space began to read a large number of jade slips left by Ziyan and Yang Hao during his break, and knew many questions that he had not thought of before.

Compared with Ziyan, the jade slip that Yang Hao left to Lu Yu is more detailed and involves more types, maybe Yang Hao knows that Lu Yu is going to Tiannan Dao, and there are some materials in the jade slip that specifically introduce Tiannan Dao, so that Lu Yu has a clear understanding of Tiannan Dao.

In addition, Lu Yu also began to do a lot of experiments, such as finding some soybeans and garlic in the rental room, bringing them into the storage space for cultivation, and experimenting to see if plants could be planted in the storage space.

As a result, Lu Yu was happy, plants could be planted in the storage space, and they were growing well.

The rest is how to bring the aura into the storage space, if you want to plant the treasure in the storage space, you need a lot of aura, in addition to the soil and fertilizer that you need to plant the treasure of the earth.

If you want to grow natural treasures, it's not as simple as growing fruits and vegetables in the Overworld!

It is very important to plant the soil of heaven and earth treasures, these soils are all five element soil of various attributes, and at the same time, it is necessary to bury spirit crystals and spirit plants and spirit beasts with different attributes in the soil, only these precious resources can cultivate high-quality heaven and earth treasures, and these resources are not easy to obtain even in the Tianlan world.

This is also the reason why the spiritual materials produced in the ordinary land of the Tianlan World cannot be called heavenly materials and earth treasures.

For example, the mountain ginseng that Lu Yu auctioned last time seemed to have a growth period of sixty or seventy years, but because it only grows in ordinary soil, even if it is another hundred years, it will not become a natural treasure.

According to the division standard of Tianlan World Heavenly Materials and Earth Treasures, the premise must be medicinal materials planted under special environmental conditions, and the production year of more than 20 years can be called spiritual materials, and it is also the lowest first-class Heavenly Materials and Earth Treasures. Fifty years of medicinal materials can be called heavenly and earthly treasures. More than 100 years old can be called old medicine. A 500-year-old medicinal herb can be called a elixir. Millennial medicinal herbs are called immortal medicines. More than 10,000 years is a holy medicine, and as for the magic medicine, it must have a growth age of more than 100,000 years.

Usually there are a lot of spiritual materials for sale in the Tianlan World, and the monks buy them and plant them, and then take them out and sell them after fifty or a hundred years, or find someone to use them for alchemy.

The heavenly and earthly treasures that Ziyan gave to Lu Yu were only fifty or sixty years old, and there was not even a hundred-year-old one, so they could only be regarded as low-level heavenly and earthly treasures.

Lu Yu could take it out and use it for alchemy, but he couldn't plant it again.

Besides, Lu Yu doesn't have the corpses of the Five Elements Soil and Spirit Plants and Spirit Beasts now, no! Lu Yu now has a spirit plant, which is the ...... of the fire baby fruit tree.

In fact, it is not a simple matter to plant heavenly materials and earth treasures, in addition to the need for spiritual materials and five element soil, it is also necessary to master a large number of planting methods, which is no less difficult than alchemy and refining.

As for the time required, Lu Yu is not worried about this, he has a special space for space-time acceleration, as long as he is willing to spend enough skill points and massive resources, he can grow a large number of heavenly and earthly treasures in one day.

Lu Yu found that whether it was the Tianlan World or the Main World, resources came first, the difference was that the Main World was money, and the Tianlan World was the Spirit Stone and the Heavenly Treasure, and there was not much difference in nature.

The existence of the special space gave Lu Yu a new understanding of his future cultivation.

Now Lu Yu is only in the third layer of qi refining, and he can't be sure whether he can cultivate spells in the storage space, if he can cultivate spells, the storage space will be perfect.

The speed of refining qi is still a little slow, do you want to use skills to be reckless?

Lu Yu can now have 100 skill points, so many skill points, what is the difference between it and waste paper if you don't use it?

"Let's raise the Qi Refining Level to the fourth level of Qi Refining first!"

Lu Yu can't wait anymore, time is running out! Thinking of this, Lu Yu first opened the system panel in the storage space, wanting to improve the level of qi refining, but found that it could not be used at all.

"Isn't it really good?"

Lu Yu had already prepared, but he was just experimenting with the possibility, after all, when forcibly raising the level of qi refining, that kind of sourness was really not something that ordinary people could bear, if it was possible, Lu Yu still hoped to cultivate slowly.

Lu Yu's consciousness returned to his body, he clicked on the Qi refining upgrade, and after consuming 4 skill points, the feeling of incomparable pain came again, although he was prepared, but it still hurt, this may be the feeling of pain and happiness!

After more than ten minutes, the pain gradually disappeared, Lu Yu took a look at the system panel, the level of qi refining had been raised to the fourth level of qi refining, but the size of the storage space did not change.

"It seems that the size of the storage space is ...... that increases according to the highest level of qi refining and body refining."

Lu Yu also found a problem, when the consciousness body is in the storage space, it cannot receive information from the outside world, that is to say, if everything that happens in the outside world is a threat to Lu Yu, Lu Yu will not know.

This is a bit troublesome, in case he cultivates in the storage space, and someone outside kills Lu Yu's body, will he become a lonely ghost.

Although this is indeed a hidden danger, there is no way to solve it now, Lu Yu just thought about it, and put this unsolvable problem aside for a while, and then slowly consider it after his strength grows in the future.