The White Hall Mirror has completed the crossing.

He became Alan Yagele's neighbor, replacing a certain passer-by who didn't appear, and became Alan Yagele's neighbor.

Moreover, he returned to five days before the beginning of the plot.

This time period is the most suitable.

Attack on Titan, in which the father of Alan Yeager is missing, after the giant broke through the "Wall of Maria" in 845.

Therefore, Bai Tangjing did not need to go back to too early a time period, what he decided was to go back to five days before the plot began.

The first day is used to fit the environment, and the second day is to get what you want.

On the third day, I started my research by myself, and carried out the most preliminary exploration of the giant's secrets, and spent the rest of my time on it.

Five days, in fact, is enough.

For the rest, it is necessary to come into contact with the giants, or even fight, to be more conducive to understanding.

However, that is not something that can be solved in a short period of time.

Therefore, in addition to doing all these things in the five days, the most important thing is to collect supplies so that after the giants break through the "Wall of Mary", they will have the foundation to survive.

In fact, Bai Tangjing even felt that three days might be about the same.

The reason why I chose five days is just to be more secure.

lest something like that would make sense and it wouldn't be in line with his plan.

This accident came from the fact that Grisha Yeager would sail to the interior to practice medicine before the wall of Mary was breached, and when the wall was breached by the giants. Rush back to the wall to find Alan and tell him that he must go back to the basement of his home in the future, and his whereabouts are unknown after injecting Alan with an unknown drug.

Actually, in the memories that Allen was evoked. Grisha was injected with an unknown drug and mutated into a normal giant with a very low IQ, but was then devoured by the giant, meaning that Grisha was actually killed by his own son unconsciously.

Dr. Grisha's life and death, Bai Tangjing does not care.

All he cares about is time, the time he needs to take a boat to practice medicine in the mainland, and the time he needs to return.

Judging from the original plot, it seems that the time will not be too long. But it's not too short.

Obviously, in the original plot, Dr. Grisha received the news not long after he went out to practice medicine. Then he hurried back, and did not really practice medicine in the mainland.

Judging from the distance, five days at most has reached the sky.

Just in case, Bai Tangjing limited five days before the plot began.

Five days before the plot begins. Dr. Grisha is less than 30 percent likely to be out of the house.

Hakudo mirror even prepares. If Dr. Grisha is in a hurry, he will no longer be in a fit for the environment on the first day, but will be on the first day.

If it's just a qualification, a chance to enter the basement, then it doesn't matter if Dr. Grisha will leave or not.

As long as the plan does not find any changes, then within five days, the giant transformation potion will be able to truly succeed. It is also possible to study whether there are side effects on oneself, or even whether it is meaningful to one's current situation. Do I need to do any further research before using it?

If it has a certain effect at the moment, then the White Hall Mirror will definitely create a giant transformation potion within five days, and then use it on itself.

Of course, Bai Tangjing also knew that his situation was obviously different from that of humans in this world.

Genetic differences can cause quite complex situations.

Guessing from the original plot, the giants of this world are obviously man-made.

Otherwise, why was Alan Yageger, the protagonist of the plot, injected with a giant transformation potion by his father Grisha Yeager and had the ability to transform into a giant?

From this point of view, it is clear that the giants that humans can transform into safely are the source of the giants in the first place.

It's just that the others seem to be failures.

A giant who fails will become a brainless giant without reason.

Successful products, on the other hand, should become human beings who can transform into intelligent giants.

Therefore, Bai Tangjing concluded that the humans in this world are estimated to have the genes of giants.

Yes, it was the first time that the whole world was changed, but there should have been three kinds of changes.

The first: brainless giants.

The second type: the wisdom giant.

The third type: humans.

That's right, except for the brainless giants and the intelligent giants, the rest are ordinary humans.

Neither brainless giants nor intelligent giants, but just ordinary human beings, as if their bodies had developed an immune constitution and were immune to the effects of the "giant virus".

Let's call this a "giant virus".

There is definitely no "giant virus" on Bai Tangjing's body, but there are also creator genes, which means that the relationship between them will directly lead to whether it is possible for him to successfully fuse this giant transformation potion.

Moreover, Bai Tangjing is very confident, and with strong spiritual power, he will never be like Allen, who will become a brainless giant from the beginning.

……

Bai Tangjing went out of the door, looking at this backward world, and was speechless for a long time.

To be honest, he has always traveled through the world of civilization, and he never thought that he would come to such a backward world.

This world feels even more backward to him than the era of "Tales of the Night 3".

Bai Tangjing looked at the coarse linen clothes he was wearing, which gave him an indescribable feeling.

It's been a long time since I've suffered, and it's really rare.

"However, this world is so backward on the surface, but it also has the high-tech of three-dimensional mobile devices, don't the humans of this world actually suspect anything?" Bai Tangjing thought inexplicably in his heart.

After all, stereoscopic motorized devices are bound to be damaged, but I've never heard of humans lacking such a thing.

Obviously, there is a high technology that can make such a thing, but it has never been seen among humans.

In addition, the existence of various survey corps in the original plot that gave away human heads to giants but achieved nothing, as well as the key secret that several "city walls" guarding humans are composed of giants.

Obviously, the human beings in this world are naturally concealed by the human high-level and are almost all kept in captivity.

The upper echelons of humanity should have real high technology in their hands, as well as the secrets of giants.

Even, Bai Tangjing completely doubted that the top level of the human race also had the ability to transform into a giant of wisdom.

At least, the real royal family, the Lacey family, has the power to transform into giants in their blood.

Of course, these secrets, Bai Tangjing is actually not interested.

As long as he gets what he wants, then what does the human hierarchy of this world want.

Of course, if Bai Tangjing gets the power of giants at that time, maybe he will be happy and change the world as before.

Although, the world of "Attack on Titan", even if it doesn't need a white hall mirror, it will change itself according to the plot.

Bai Tangjing's choice is just to join or not to join, or to complete this matter in advance, and that's it.

And, to put it bluntly, changing the world in the past was completely boring.

And, in order to earn more good and positive results.

Recently, Bai Tangjing has become more and more lazy to do this kind of thing by himself.

As long as there are a sufficient number of traversers, if you want to earn good and positive fruits, or even merits, you can simply let others do it for you.

It's too inefficient to do these things all the time by yourself.

After this world, after further being able to let the real world master enough strength, Bai Tangjing also has time to manage the affairs of the traverser in the real world for a period of time with peace of mind. (To be continued.) )

PS: Thank you to SacredKnight, Star Field Xingchen, and the Empty Way commuter pass!