After Ma Yan went to take a bath, Yang Yifei's mind focused on the system mall, and the house he wanted to build would naturally not be a high-rise building, or even a brick and stone building.

Now at the beginning of the start, he plans to use some prefabricated houses to build a small base first, because prefabricated houses are relatively cheap, basically 5 points can build a room of about 20 square meters, and the factory is a little more expensive, only about 10 to 15 points.

If you buy reinforced concrete bricks or concrete, not only the price is higher, but it also requires labor, which cannot be done in a short time by relying on his mental power.

And the things that can be used as manual use in the system mall are only trackers, tyrants, and butchers, because only these goods are controlled by the host and will obey the host's orders, but these goods are classified in the weapon category, which belongs to biological and chemical weapons, and the price is expensive.

Things like zombies and creepers are unintelligent and uncontrollable, and they are bio-weapons that attack all living things.

A big butcher has 2500 points, and it comes with a weapon and a big axe, and the tracker is cheaper, only 2000 points, but this is only the "bare metal" price, and the tracker's special equipment has to be counted separately.

A 5,000-round reloaded revolver rapid-fire machine gun costs 400 points each, and a 6-round loaded bazooka is also 400 points, which is equivalent to saying that a tracker with complete combat power needs 2,800 points, which is more expensive than the big butcher.

This is also normal, if there is no weapon tracker, if it is hand-to-hand combat, it will be hammered into slag by the butcher in minutes, but with a special weapon, then it is the butcher who is bombarded into slag in an instant.

Therefore, the impact of weapons and equipment on the combat power of biological and chemical weapons is very large, Yang Yifei even opened his brain, if the big butcher brought up a cannon, what kind of power would it be?

This Great Butcher and Tracker is expensive enough, but the Special Tyrant is even more expensive, costing 3500 points each, after all, the Great Butcher and the Tracker have only one with infinite strength, but they are also very clumsy, sluggish, and inflexible.

Not to mention that the tyrant's own speed, strength, and agility can comprehensively crush them, the telekinesis alone is enough to make the tyrant's combat power much higher than them.

Although the tyrant will only use the most crude telekinesis, that is, to blast it out as a shock wave, but the power is also very considerable, so it is completely understandable that it is so expensive Yang Yifei.

Now his remaining total points are 76875, and he can only afford to buy more than 20 biological and chemical weapons, but if he spends all his points on labor, what can he use to buy building materials? Therefore, the conditions are not enough now, so we can only simplify everything.

It's a pity that the main tone of the biochemical world is biochemical research, and there is almost no development in the field of robots, otherwise he only needs to give orders to build robots, and he doesn't have to worry about anything.

Yang Yifei spent 100 points to buy the materials of the prefabricated house, installed it himself, and under the strong effect of the telekinesis, when Ma Yan scrubbed the dirt off, put on new clothes, and put on sunglasses, a simple park was already located 30 meters away from the river.

This park consists of more than a dozen houses and two 300-square-meter factories, Yang Yifei chose two rooms as his and Ma Yan's living rooms, and arranged all the necessary furniture such as beds, sofas, coffee tables, dining tables, wardrobes, etc.

After Ma Yan entered the room, he was immediately speechless, "Big brother, these things are unseen and unheard of by the younger brother, could it be that these things are used by cultivators and masters?" ”

Yang Yifei pretended to be a **, "Ordinary cultivators can't touch these things. ”

He looked back at Ma Yan, with a look of appreciation in his eyes, and said with a smile: "I didn't see it, your kid is actually quite handsome, but now that he has lost weight, and with a little more meat, he may be as handsome as his brother, hahaha......"

Ma Yan also grinned and scratched the back of his head.

This kid's appearance is indeed not bad, a man actually has a melon seed face, his eyebrows are very thick but long, and he is born to fly upwards obliquely, with a pair of Danfeng eyes, it is an authentic sword eyebrow.

The long hair washed with shampoo is casually draped behind him, and it has a bit of a chic and uninhibited taste.

At this time, he was wearing a small Yang Yifei with the same tight leather coat, his thin body made him look very long, and he was wearing a pair of black land boots on his feet, and the whole person looked neat.

He was now only seventeen years old, had been in the pit for half a year, and was almost eighteen years old, with only a few fluff on his lips and no real beard yet.

In terms of the appearance of this kid, if you put it in the martial arts world, it will be a template for a young hero, and if you put it in the urban world, it will be a standard little fresh meat.

It's a pity that in this almost isolated place, only he and Yang Yifei, who is a little more handsome than him, are there, and no one comes to appreciate his handsomeness.

Yang Yifei beckoned Ma Yan to sit on the leather sofa, the softness and comfort of the sofa made Ma Yan sigh again, the life of the cultivator was really unimaginable to him.

Ignoring Ma Yan's emotion, Yang Yifei took out a tube of Perfect T virus from the storage space, which he made privately in the years after the destruction of Ambrera Company, and there were more than 100 tubes in the storage space.

In the system mall, the price difference between the T virus and the perfect T virus is 10 times, the ordinary T virus only costs 200 points for a tube, but the perfect T virus costs 2000 points, which is equivalent to the price of a bare metal tracker.

He made more than 100 tubes, which is equivalent to a net profit of 200,000 points, after all, this means that he can create more than 100 super soldiers.

"Little Pony, I think you should know that cultivation needs to start from a young age to build a foundation in order to achieve something, and you are only a little late in starting to practice now, so if you want not to lose to those who have built a foundation since childhood, you need to suffer a little."

Ma Yan said with a straight face when he heard this: "Big brother, you don't know what kind of life I used to live, just by enduring some hardships, I can become a cultivator, this is already a great opportunity for me." ”

Yang Yifei said with relief: "You have such an awareness, that's good, this one in my hand is an elixir that can wash the scriptures and cut the marrow for you and open your spiritual sense." ”

"After using this elixir, you will feel a sharp pain like tearing all over your body, but it will only last for a short time, as long as you endure it, you will be reborn."

Ma Yan said without hesitation: "Please give it to me, eldest brother!" ”

Yang Yifei nodded, grabbed Ma Yan's right arm, rolled up the sleeve, and immediately pricked the syringe directly into his arm, injecting the Perfect T virus stock solution into it.

After a few moments, Ma Yan's face began to distort, and the whole person curled up on the sofa, trembling all over, and let out a suppressed roar in his throat, but he gritted his teeth to prevent himself from screaming.

In order to divert his attention, Yang Yifei slightly alleviated the unbearable pain, and said with admiration: "Xiaoma, you are very good, really good, ordinary people use this elixir, all of them are rolling on the ground, screaming again and again, you can hold back and not scream, the eldest brother is going to be impressed by you......"

Ma Yan's painful face showed a look of joy and encouragement, as if he could get Yang Yifei's praise, which was the most worthy of his happiness.

Yang Yifei continued: "After the I Ching is cleansed, it won't be long before you will find that your strength has increased greatly, you run faster than before, jump higher than before, and your physical strength is better than before, and as time goes by, you will find ......."

Yang Yifei talked about the benefits of the T virus fusion one by one, Ma Yan listened attentively, his eyes were full of longing and yearning, and he almost forgot the severe pain in his body, and before he knew it, the initial fusion of the T virus had been completed, and the severe pain disappeared.