Potomac River at night

The roar of the water, which divides the north and south of the United States and runs through Washington, D.C., can be faintly heard even on such quiet nights. The endless flow of the river, and the dim light, perfectly conceal everything beneath the surface, and it is impossible to determine what lies under the dark water.

And on the bank of this long river, there are two dim figures, and then the faint light carefully observes the surrounding abnormalities.

"That ...... the final fortress of the 'Human Ark' was built underwater?", a small girl's voice came from a shadowy corner.

"Well...... It should be to avoid all kinds of exploration, in this situation of unknown underwater, there are a lot of undercurrents, coupled with some complex ecological environment underwater, it can almost be said to form a layer of natural protection, can block a lot of troublesome detection equipment outside. ”

"Well...... So how do we get in? That fortress seems to have been built at the bottom of the river?", the girl asked.

"It's actually pretty simple...... Just hold my hand. The young man's figure shook vaguely in the air, and then calmed down again. But the voice of the girl on the side was a little flustered:

"Eh, why...... You have to hold hands! This has nothing to do with diving in, does it?", the girl's voice was a little louder, but it was still muffled by the sound of water.

“...... It's just that I'm convenient to use...... Otherwise, you can't change into a diving suit, right?, it's inconvenient to move like that?", the air around the boy continued to vibrate at a strange frequency, and the boy's voice came at the same time.

"Huh...... Wait!Hoshikawa-san, don't pull me......", the figures of the girl and the teenager appeared from the shadows, but then disappeared without a trace, but from the ground you could still see the traces of the object moving and crushing the past.

At this time, Chen was standing in a gentle place, pulling the sunspot next to him and preparing to go down. However, Kuroko looked at Chen's unexpected actions and didn't quite understand it, but in the end he chose to believe in Chen's approach.

The two of them walked step by step from the 6th ground to the water, and just as Kuroko was thinking that his clothes were going to get wet and wanted to ask, he was surprised:

"Eh, I don't think I touched the water?", Kuroko said as he felt his feet that had been submerged in the water, but he couldn't feel the feeling of being soaked in water at all.

"Of course...... Don't delay too long...... I haven't tried this method for a long time...... Sneak into the fortress as soon as possible. Chen, looking at the sunspot who was a little curious and feeling different feelings, urged so much.

"Yes!", Kuroko just answered, and then he plopped and submerged under the water, of course, he was dragged into the water by Chen.

"Eh, eh, Hoshikawa-san, what are you doing!", Kuroko's grumbling voice came, and Tatsumi just used his usual vision and perception to explore the surroundings, and replied as he observed:

"Just get down here...... Don't worry about drowning anyway. By the way, can Shirai-san swim?", Tatsumi suddenly asked.

"Oh, too...... It doesn't feel like you're immersed in water...... Of course, how could such a simple basic skill stump me. Kuroko complained with some dissatisfaction.

"That's good, I may not be able to leave together when Shirai-san leaves first, and Shirai-san will have to swim up by himself then. Tatsumi determined his position in the water a little, confirmed it a little, and then said to Kuroko.

"Eh, won't Hoshikawa-san leave together?", Kuroko asked, tilting his head, but at this time, it was pitch black under the water, and he couldn't see the expression of the young man next to him at all, and Kuroko could only feel his presence by holding the boy's palm.

It's really dark here...... I've never felt so isolated...... But...... But I really don't think it's a person?" The girl subconsciously clenched Chen's palm, and then suddenly felt something, and wanted to take it back in a little panic.

"Don't move, the air film I made can maintain a limited range, and if Shirai-san is far away, I won't be able to maintain it. The boy reminded seriously, in the dark, the boy can only be regarded as a bland word, but it is extraordinarily weighty, enough to make people feel at ease in this dark environment.

"Hoshikawa-san's ...... What kind of ability is it?", Kuroko gradually calmed down, and asked curiously as he continued to fall towards the bottom of the river with Chen.

"Well...... Actually, it can be understood that I forcibly extracted the air from the nearby river and then formed a balanced posture around us, so we are actually in the air and not in the water now. Tatsumi explained casually, but in fact, he was trying his best to determine the specific location of a certain building.

"......Uhh It's so convenient...... Is it possible for Hoshikawa-san to ignore these environments directly?", Kuroko said with some surprise.

"It's not convenient...... You have to be more careful to maintain the stability of this thing, and it's better to use a diving suit than to be so troublesome......", Chen's voice sounded quietly.

"Actually, if you move the coordinates like Jie Biao Tanxi, you may not be able to move yourself directly to the fortress, but there is a considerable chance that you will stuff your body into the alloy protective wall...... If you don't master the ability of spatial movement, it will be a problem......", Tatsumi said some of his guesses, and then led Kuroko through many undercurrent areas, and finally fell to the bottom of the river.

"Tin Xi's ability is much better than mine...... The mass and distance of the objects I can move are much lower than hers......", Kuroko may have remembered that he is also a spatial ability, and said with some frustration.

"You can't say that...... If you look at it from my point of view, you will travel on a business trip when you use this ability, and even have to rely on things like flashlights to accurately locate them, and there are many flaws and you can't master the ability to move remotely, so it's not as good as Shirai-san's ability to move accurately. Chen, said with a little disagreement.

"Huh?", Kuroko was a little stunned for a moment, and then didn't know what to say.

"Ability doesn't necessarily need to be the strongest and most invincible, but it's the best for yourself, for example, let Shirai-san's current ability be replaced by the kind of Yuki Taxi, what does Shirai-san think will happen?", Tatsumi stopped moving, and Kuroko vaguely felt that he should turn his head and ask himself.

"Well...... I guess it's going to be uncomfortable...... I feel that her ability is very inconvenient to use......", Kuroko thought for a moment and replied seriously.

"That's it, the strongest ability is not necessarily the best, and it's better to have a dagger that can be used freely than to have a long knife that you can't master. Mr. Chojuro also said so......", Tatsumi seemed to fall into a memory, and his voice was cut off for a while.

"Ah...... I was thinking about something just now...... Let's dive in first. Chen's voice remembered again, and called back the stunned girl on the side, and then the two of them walked in the direction of the water towards a huge building hidden at the bottom of the river, completely wrapped in alloy metal plates.

..................

The Human Ark, known as the Doomsday Fortress, the ultimate scientific building of the last fortress, has the ability to protect against nuclear bombs or above, and the unknown alloy shell that costs a lot of money to smelt, with a thickness of nearly 100 meters, coupled with amazing strength, even if it is a head-on attack with a few nuclear bombs, it should be completely fine. And under this layer of metal protective wall there is a vacuum protection area, as well as some kind of special energy protection layer, which is enough to resist all kinds of intruders.

No one has been able to breach the Ultimate Fortress's defenses since day one, and most of the low-level infiltrators have failed to return when they have touched the outermost alloy shield, and no one has ever been able to break through the second or even third protection.

"Really...... Is it necessary to be so strictly protected...... It consumes a lot of energy every day...... What is the guy up there, is he crazy enough to tell us to turn on all the protective measures...... Even the usual patrols have become troublesome......," a young soldier in uniform complained to his companions.

"Well...... Maybe it's some kind of secret real yàn that the boss is working on? It's said that he grabbed something very remarkable...... I see that the researchers are all studying ...... that have stayed up all night," replied a young man in the same uniform.

"Hey, maybe you're researching immortality or something, right? I once looked at a document that wasn't destroyed...... It is said that this kind of immortality plan is being made......", the soldier said cautiously.

"How is that possible...... Isn't it common sense that all life will die? The young man on the side complained.

"Well...... It's just a legend anyway...... This kind of thing can't be trusted!", the soldier snorted and was about to say something else, but he saw his companion next to him frozen in place, covered with white transparent ice crystals, and even his expression just now was frozen in the ice, and his last gaze was to look at a corner on the side.

The soldier turned his head in some trepidation, but saw a young man with pale blue eyes, which did not contain any emotion of pity for life, as if he were looking at a dead thing.

And this is the last scene that the soldier has seen in his life, a thin young man, pulling a tea girl, looking around with a calm gaze. Even the two people who were frozen just now couldn't appear in the young man's gaze, as if they didn't exist.

(PS: Because the next volume is the reason for the godslayer, I went to see the latest situation of the godslayer...... The Last King looked like an archer, and the archers were able to use the power of the Celestial Empire and the Hindu Persian god of steel...... It's really a lot of archers since ancient times...... It's better for me to obediently ignore this one...... It's too powerful...... ）

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