Biology ... there is always a pursuit.

The pursuit of goals, thinking produces joy, but vice versa is pain.

This is generally the case.

But the creatures in this world are a bit different.

This is a world wandering in the void.

There are many creatures living on it, just like anything ... the bus world.

It's just that the creatures of this world are a bit different, that is, they ... it's hard to feel happy.

Of course ... they weren't like this from the beginning.

Creatures in this world are beginning to live a normal life.

In order to live in this wandering world, they also have a strong adaptability, but most of them live underground.

At the same time, many creatures have established their civilizations underground in this world.

They have always lived a very normal life ... but at some point they suddenly discovered an extremely serious problem.

That is ... they can't be happy anymore.

The definition of 'happiness' is mainly related to the values ??of a creature itself. For example, a general personality creature will be happy because of its reputation, status, and wealth.

There are also some special ones, such as thugs who will be happy in the slaughter.

But in any case, they are not available.

That's mainly because ... the world prevents them from acquiring.

Although they do not know that it is caused by this world.

At first ... it was just a more "mild" phenomenon.

At first, if a creature feels satisfied, their bodies will ... deteriorate, and there will be a lot of degraded performance, such as decreased immunity, and easy to get various diseases and the like.

If they often get happiness and satisfaction, their bodies will get worse and worse until they die.

Although in general, it is difficult to continue to be happy after the body becomes worse, and they do not realize that this is caused by happiness, so no creature gives up the pursuit of happiness and satisfaction.

But slowly ... they found more serious problems.

That is, they can no longer be happy and satisfied.

These creatures found that their goals seemed to be out of reach.

For example, a creature that is just satisfied with its own food ... Suddenly at a certain time it is found that being full is not satisfying.

It will feel like "it seems to be a lot worse", so it continues to eat.

Some creatures will die, and some creatures will not continue to eat because they are afraid of death ... but they feel more and more uncomfortable.

This is true of almost all living things.

No matter what the goal they are pursuing, what is the reason for satisfaction ... they will always feel worse after they have achieved their goal.

That is their desires and ideas ... it seems that they will never be satisfied.

So ... the creatures of the whole world went crazy.

Some creatures are constantly trying to grasp the satisfaction in the depths of their minds, but it finds that they can't be satisfied anyway and ... crazy.

Some creatures do not pursue satisfaction, but their thinking is occupied by an ever-increasing desire for satisfaction, so they are crazy.

This is true of all living things.

From that time on, the world was only mad and painful, without happiness.

The biological civilization here quickly collapsed ... Although many creatures tried to treat this symptom during this period, more and more creatures were unable to obtain satisfaction, making their civilization more and more ... difficult to maintain .

Because the emotions of these creatures become more and more irritable, it is soon the beginning of various wars.

Of course, it is not only intelligent creatures that can not be satisfied, but also many wild creatures can not be satisfied.

They are easier than smart creatures ... crazy.

At the same time, the initial "body deterioration" effect is still there.

Even if these creatures can no longer be fully satisfied, as long as they pursue satisfaction, they will make their bodies worse.

The biological system of this bus ... of course there is no way to continue.

Initially this unsatisfied emotion brought countless mad creatures and various wars destroyed many creatures.

But the creatures here are not completely destroyed.

Because there are still a lot of creatures without emotion ... for example, similar to plants.

And some special creatures.

These biology will learn how to live in an unsatisfied environment.

They try to avoid seeking satisfaction, like eating, they will avoid tasting the taste of food ... Instead, they use injections to gain energy.

The technique of injection is left by the past civilization. Although the civilization has collapsed, there are still some creatures living in the ruins of the civilization, trying to avoid any satisfaction and happiness to survive.

They no longer pursue entertainment and other things like normal personality creatures, their only goal is to survive.

And living is a goal that does not bring any satisfaction in itself, so it is no problem for them to pursue this.

So ... this group of creatures lived in this painful world, they were not happy, but still had the desire to live.

This group of creatures ... have lived in this world for a long time.

During this period, this group of creatures has been extremely painful ... they are doing anything that violates their 'instinct'.

Generally speaking, personality creatures will commit suicide when they are unable to obtain happiness, are under excessive stress, or suffer too much.

But they won't.

Lynn thinks this is wonderful, these creatures still want to live even in such a painful environment.

As long as there is no satisfaction, creatures feel that life is meaningless ... which is not the case for them.

Perhaps it is simply that there is a huge fear of death, or some other reason.

These creatures have been trying to reproduce in this world ... because reproduction will also be satisfied, they will breed offspring in a non-sensing way.

Every cub must be educated to let them know how to live in a painful world.

Of course, there are also suicides between them ... so their number has never increased.

But once there was some ... situation.

That is, they can't stand it anymore.

Because the new generation of cubs slowly replaced the previous generation, although they initially followed the rules that they cannot pursue satisfaction, but slowly they wanted to violate this rule.

They think everything in this world is extremely abnormal ... so they started to do the same thing as Lin now.

That is to get satisfaction from 'drugs'.

Because they can't really be satisfied no matter what they do, and they will make the body worse and worse ...

So they have developed a drug that can directly stimulate the satisfaction of thinking.