Parallel world, Huaguo, Yangcheng.

July 30, 2050.

It's a hot summer, especially in southern cities, and even though the sun has set, it's still scorchingly hot.

Southeast of Yangcheng, in a valley 20 kilometers away.

Ye Feng had been in a daze for an hour, and there was only one thought in his mind.

"Why did I become a tree?"

He "looked" down, looking at his own corpse under the tree, and actually had a guess in his heart.

"No matter what, even being a tree is better than dying. And in an era when animals and plants are mutating around the world, it may not be bad to be a tree. Ye Feng muttered to himself in a low voice.

He didn't say this purely to comfort himself.

Half a year ago, mutated creatures appeared on the blue star.

Of course, there were only sporadic individuals at that time, and the mutated creatures were not very large.

But with the emergence of mutant locusts on the African side three months ago, the situation began to take a turn for the worse, and the number of mutant creatures exploded.

The smaller the creature, the greater the probability of mutation.

Mosquitoes, flies, cockroaches, most of these creatures that can be seen randomly in human cities have mutated.

And, they began to attack humans on their own initiative.

Around the world, there are hundreds of incidents of mutated creatures hurting people every day.

In the city, mutant rats have become the most dangerous creatures.

They are larger than the average domestic cat, flexible, biting, and aggressive.

On the Internet, there are videos of mutant rats and hunting dogs biting and dying together.

Two months ago, even plants were mutating.

However, due to the inability of mutated plants to move, they suddenly became the best subjects for study.

However, the mutant plants are all in the wild.

For example, on Xiaofeng Mountain, 30 kilometers east of Yangcheng, a giant tree that has grown to a height of 300 meters has appeared.

Without any surprise, it was targeted by research institutes.

The agricultural university where Ye Feng studied happened to cooperate with research institutions, and the school undertook the work of "sampling".

Under normal circumstances, the wild is so dangerous that a fool will go.

But alas, the other party gave too much.

100,000 in cash, plus 1 million in accident insurance, and accompanied by a security company.

This is too tempting for Ye Feng, whose family is not wealthy and needs to work and study.

Eventually, he gritted his teeth and signed up.

Then, halfway through, they encounter mutant creatures.

It was a mutated boar the size of a car, and it only took two hits to tip their bus over.

Eventually, everyone scattered.

Luckily, the mutant boar didn't go after him.

Unfortunately, he encountered a poisonous snake and was bitten.

When he "woke up", he found himself an iron birch tree.

"Ding! The fusion is successful, congratulations to the host for obtaining the special ability: Devour! ”

The system prompt instantly pulled Ye Feng's mind back.

He couldn't wait to open the system panel.

Host: Leaf Maple (World Tree)

Tree height: 10 meters

Trunk width: 0.5 m

Root length: 20 m

Realm: Early Stage of the First Order

Evolution point: 0/10 point

Special Ability: Devour

Aura: 7/100

Bioenergy: 9/100 points

As soon as he woke up, he found that he had the system and a starter pack.

Then you get a "World Tree Heart", which, when fused, can become a World Tree.

In this case, Ye Feng of course chose fusion without hesitation.

Until now, the fusion has finally succeeded.

"Is this what it's like to be a World Tree?"

Ye Feng felt this brand new body, although his current appearance was still an iron birch, but in fact it was completely different.

He can control every branch, every leaf, of the whole tree, and sway it.

As soon as his mind moved, the whole tree began to sway from side to side, and the leaves rattled, startling a crowd of birds in the valley.

"The maximum extent of the tree can be tilted by 60 degrees, and each leaf can be rotated 360 degrees."

"The most important thing is ......"

Tree roots burst out of the ground, whipping like whips on the ground, crackling.

"It's a pity that I can only do simple whipping or winding movements, and I still can't be flexible enough, at least I can't use tools." Ye Feng made a conclusion.

This is already extremely flexible for a tree.

But Ye Feng was still a little dissatisfied.

He had imagined before that he could "stand up" directly and "walk" home like the ancient war tree of Warcraft.

"However, I still have the system!"

Ye Feng regained his gaze and fell back on the system panel.

During the time he was waiting to merge with the Heart of the World Tree, he not only thought about life, but also studied the system.

The function of the system is very simple, allowing him to grow and evolve quickly.

Of course, this requires aura and bio-energy.

According to what he learned from the system, Reiki is the mysterious energy that causes mutations in living things and plants.

Therefore, if you want to evolve quickly, Reiki is an indispensable thing.

As for bioenergy, it is literally, a kind of energy stored in the body of living organisms, whether it is growth or evolution, it needs to consume energy.

Using the function of the system, consuming 1 point of aura value and 1 point of bio energy, you can make a certain part of the body grow rapidly.

Now he has 7 aura and 9 bio energy, which allows him to grow 7 times.

"All I have to think about is where part of my body grows." Ye Feng stared at the system panel, thinking.

He also thought about this question for a long time.

The height of the tree, the width of the trunk and the length of the roots represent three different directions.

Tree Height: Increases the height of the tree to make more leaves and absorb the aura in the air faster. In addition to this, the photosynthesis of leaves will also produce a certain amount of biological energy.

Trunk Width: Increases the amount of Aura and Bio Energy stored.

Root Length: Increases the rate of bioenergetic uptake.

According to his original plan, the first priority of the three options is, of course, the height of the tree.

Increasing the height of the tree can speed up the absorption of aura, and it can also produce bioenergy, which is undoubtedly the most cost-effective choice.

But as he evolved into the World Tree and had the special ability of Devouring, things were different.

According to the information provided by the system, he can use this ability to devour the aura value and bioenergy in the bodies of other creatures.

However, to activate this ability, you need to make your own physical contact with the other person.

It is very difficult to get your own leaves or trunks into contact with other creatures.

Therefore, the root of the tree is the best medium to use the "devouring" ability.

"As long as I use the roots of the tree to bind other creatures, I can slowly absorb them with my devouring ability, so that the speed of obtaining aura and biological energy should be faster." Ye Feng made a decision to increase the root length first.

In addition to this factor, there is a more important reason.

That is, hide yourself.

If he grows too tall, with satellites overhead, it is inevitable that he will be targeted.

He didn't want to be the object of study.

The roots of the tree are hidden in the ground, and he can develop quietly.

As soon as he thought of it, he stared at the system panel and clicked on the + sign behind the length of the tree root.

"Ding! Does it cost 1 aura and bio energy to increase the root length? ”

Looking at the system prompt that popped up, Ye Feng chose yes without hesitation.

As he clicked the button, he felt as if something was missing from his body, and then his roots began to itch and grow at a rate visible to the naked eye.

After Ye Feng became the World Tree, his 1 taproot and 100 lateral roots could be accurately controlled.

At this time, it is these 101 roots that are growing wildly.

In just one minute, the length of his taproot increased by a full 20 centimeters.

"It's grown so much." Ye Feng was a little surprised.

He should use all the remaining aura and bio energy to increase the length of the tree's roots.

After a while, he glanced at the system panel, and the length of the tree roots had increased by 1.4 meters, from 20 meters to 21.4 meters.

"Now I absorb the aura in the air by myself, and I have 1 aura value in an hour, and as for biological energy, it will be more."

"In other words, if I don't do anything, 24 points of aura a day can also increase the length of my tree roots by 4.8 meters."

When this number was calculated, Ye Feng's heart shook.

Compared to ordinary plants, his growth rate can be called terrifying.

What's more, the devouring ability that he had high hopes for has not been used yet!