They won the Holy Grail War, but this turned out to be the Virtual Tree Universe.

Chapter 538 Side Story (Part 3): Strategic Retreat! Retreat to Mondstadt?
When the Moon Hunter was forced out of the underground, he was still a strange mass of blood-red energy, but he completed the reshaping of his body in mid-air.

The appearance of the Starry Sky Train crew made the Moon Hunter take things much more seriously, and he had already summoned his thorny spear with the crescent moon symbol.

However, facing this inexplicably powerful team from the Starry Sky Train crew, the Moon Hunter's past professional habits prevented him from charging into melee combat. Instead, he swung his spear, summoning more Berserkers, and fiercely asked...
Who are you? Why have you come here?

The Starry Sky Train crew consists of powerful individuals who have directly passed through the Sun God and the Iron Tomb. The Moon Hunters' approach won't scare anyone.

Xing put away his flamethrower, swapped it for a baseball bat, slung it over his shoulder, and arrogantly walked forward to reply.
"I am Galaxy Baseball Man, here to teach those scoundrels who bully beautiful girls a lesson!!"

Upon hearing Xing's words, the Moon Hunter was dumbfounded, immediately wondering if the little girl who spoke had something wrong with her brain.

The girl then asked Yakoda beside her.
"Beautiful girl? Are you talking about me? My codename in the Fatui is 'girl,' not 'beautiful girl,' isn't it?"

Yakoda was momentarily at a loss for words when asked Colombia's question.

However, Philins calmly explained at this moment.

“Miss Columbia, this lady is referring to you. ‘Beautiful girl’ is an adjective used to praise a girl’s beauty. From any angle, you are qualified to be called a beautiful girl.”

Columbia is a typical example of someone who, because she knew too little about the outside world, would believe anything someone said to her who had no ill intentions or needs.

After Philin's explanation of the beautiful girl, Columbia immediately looked enlightened and said...
"Oh, I see. So I'm a beautiful girl... But if that's the case, then Ying, Yakoda, and Lauma are also beautiful girls."

Columbia's words made Yakoda blush and feel shy, muttering things like, "What kind of beautiful girl am I?"

Philin's face instantly tightened, and he muttered, "Lauma doesn't look like a girl at all."

But he knew that saying this was extremely impolite and would definitely be disliked by the person involved, so he kept quiet.

However, Philin's distress didn't last long. Suddenly, a pink light flashed beside Columbia, and a pink-haired girl appeared out of thin air, carrying a briefcase with a red cross.

A stranger suddenly appeared beside them without their knowledge. Philin almost instinctively raised his gun, and Yakoda and Lauma were also startled.

Fortunately, the girl introduced herself immediately upon appearing.
"Hello, my name is Demuse, and I am a member of the Star Train."

Seriously, when your friends start fighting, they don't care about what's behind them. Didn't they see the beautiful girl was injured and bleeding?

Miss, I've brought the first-aid kit. I'll bandage your wound right away.

The train uses the best-reputed external wound medicine from Interstellar Peace Company. After dispelling that strange crimson energy, your wound will heal quickly after applying the ointment.

After Demogue finished speaking, Himeko and Ying, seeing the commotion, immediately came over. Himeko, upon entering, immediately helped Demogue verify his identity, saying...

"Yes, Miss Demogue is also a fellow traveler on the train."

Upon hearing this, Ying also spoke to the others.

"The Star Train is a friend I met in outer space. They are reliable and trustworthy."

Flins and Lauma both knew that Ying was an extraterrestrial visitor. Although they didn't know the details, Ying said that the people who came this time were her extraterrestrial friends. Because of their trust in Ying, the two of them immediately lowered their guard against the Star Train crew.

As for Columbia, Ying is the person she trusts the most, so naturally she listens to whatever she says.

So Columbia obediently allowed Demugg to cleanse the abnormal energy from her wounds and bandage them.

However, the peaceful life at home doesn't mean that there's just a lot of empty talk on the front lines.

Seeing that Star Hunter wasn't speaking properly, after hearing Demuse's self-introduction, he immediately turned to March 7th, who seemed easier to fool at first glance, and asked again.
"So, the organization you belong to is called the Star Train?"

On March 7th, she reflexively wanted to answer "yes," but Xing stepped forward and interrupted her.

"She is the Pink Cloud Celestial Maiden, and that cool guy with the gun over there is the Cold-Faced Little Azure Dragon, a mere Blood Sin Spirit. Upon hearing our names, you'd better retreat at once!"

Seeing that Xing clearly didn't want to talk to him properly, and already in a state of madness, the Moon Hunter didn't bother to say anything more.

In an instant, he leaped up, his spear condensing a rich crimson power. He spun 360 degrees in the air, shattering the ice arrow shot by March 7th, and then crashed to the ground, slamming into Xing.

Facing the Moon Hunters' sudden attack, Xing showed no fear. His baseball bat instantly became covered in white destructive energy as he swung it with all his might at the Moon Hunters' spear.

The weapons of both sides clashed, and the power of destruction and the abyssal power of the Moon Hunters exploded instantly with a loud "boom," blasting both sides apart.

However, Xing was pushed more than ten meters away by plowing through the ground with his legs, while the Moon Hunter was blasted into the air hundreds of meters away.

Xing suffered a minor loss in this collision.

Despite the short distance she retreated, she absorbed the entire impact of the explosion. It's only because Xing is truly tough that she didn't cough up blood.

It should be noted that the Moon Hunters' strength at this point is already very close to that of those using the cornerstone of gold dust.

As for Xing's true strength, it is estimated that he has only reached the edge of the Star-level.

In other words, the Moon Hunters were also testing the strength of the star, holding back a lot of power, which is why they managed to fight to a standstill on the field.

However, even if Xing wasn't injured, she couldn't escape the intense pain from the shock.

Although the Moon Hunter was blasted away, he dissipated all the force in mid-air and still had enough energy to summon dozens of energy cones to attack the Star, whose movements were now somewhat stiff.

Fortunately, Xing was never fighting alone. The energy cones fired by the Moon Hunters in the air were instantly intercepted by Dan Heng with his spear, who was standing in front of Xing.

At the same time, a small black hole suddenly appeared behind the Moon Hunter, sucking him and all the Wild Hunt creations within a radius of several hundred meters into it.

Walter adjusted his glasses, calmly watching the Moon Hunter being sucked into the black hole, and said softly.
"Simulated black hole activation, experience the terror of being torn apart by gravity, evil spirit."

After saying that, the simulated black hole suddenly contracted and then exploded, tearing the Moon Hunter and Blood Sin Spirit inside into pieces, which turned into starlight and purple flames that fell to the ground.

Upon seeing this, March 7th immediately praised...

"Wow, Uncle Yang's black hole is still so sharp. This Moon Hunter was instantly blown to pieces."

However, despite March 7's praise, Walter's expression remained serious. He turned to Ying and said...
"According to Dan Lei's intelligence, this monster is a Blood Sin Spirit."

According to Miss Huangquan, some powerful Blood Sin Spirits continuously absorb void energy and are reborn.

Unless the source of the void power is cut off, these monsters will keep resurrecting.

This monster was smashed to pieces by a train but could still regenerate its body, so it's obviously indestructible.

I suggest we retreat first, otherwise the endless enemy will exhaust our strength. This planet is already surrounded by a special void force, and it's impossible for us to deplete the void force around it with our current strength.

Walter's statement is a classic example of a situation where the process is completely wrong, but the answer is correct.

Danlei told the train crew that the information about Teyvat definitely did not include human history. If they were to start talking about it from the beginning of time, they could talk about the bizarre histories of the various countries of Teyvat for a whole day.

This meant that the train crew knew only that this was a test field against nothingness created by the Immortal [Dragon], and that there was a sleeping Commander-level powerhouse named Tenri, who had already defeated the local Immortal Commander-level dragon. Everything else they knew was information they had heard from Ying in Pinocchio.

Obviously, Ying wouldn't have told the train crew the story of the Five Sinners of Canria back in Pinocchio.

Therefore, Walter could only use the known information to judge the situation of the Moon Hunter, the Blood Sin Spirit mentioned by Dan Lei.

However, the conclusion that each of the five sinners of Kanria absorbed abyssal power comparable to a planet is based on a lack of understanding of the nature of planets.

Furthermore, compared to the endless abyssal power outside the planet, the power possessed by the Five Sinners is merely a drop in the ocean.

It's easy to see that Teyvat's borders, with the help of the witches, can temporarily withstand the erosion of the Void. Besides the witches' superb skills, the planet's own quality certainly cannot be a hindrance.

It's important to know that Teyvat itself has been exposed to the power of the abyss by the Nibelungen for over six thousand years, yet the planet itself has not been fully eroded to this day.

It can be said that the Abyss's erosion of Teyvat is both internal and external, yet it has withstood it for so many years. This ability to resist the erosion of the Void fully proves that the Immortal [Dragon] truly had a deep understanding of the power of the Void back then.

However, even if the power of the Moon Hunters does not come from the endless abyss outside the planet, the speculation that they can constantly resurrect and the conclusion that they can wear down the train crew remains unchanged.

Of course, things would be different if Xing suddenly figured out how to continuously extract energy from the star core within his body, or if Changyeyue reappeared due to the crisis of March 7th.

Putting everything else aside, if Changyeyue were to reappear, she, being on par with Tianli, could easily crush the five great sinners of Kanria.

But these are all hypotheses. It's not that easy to control a star's core, and the Long Night Moon won't easily reappear.

Therefore, Walter's suggestion was immediately agreed upon by everyone.

However, Philins still asked...

"It is a wise choice to retreat for now and figure out how to deal with the Moon Hunters."

But where do we retreat to?
The Moon Hunters have an endless hunt and can search for us throughout the entire Nordcala.

Himeko simply laughed at the question.

"It's alright. In an emergency, we have to act quickly. You can get on our train first. These Wild Hunts don't seem to be able to fly. We should be able to fly to a safe area without any problems."

Upon hearing that she could actually get on the train, Ying immediately agreed.
"Yes, the Star Train is very safe and extremely fast. It will definitely get us to a safe place."

Since Yingdu had said so, Felinston had no further objections. He had been very interested in the train that had suddenly appeared out of thin air and wanted to go inside and take a look.

As for Columbia, trusting Ying, she naturally wouldn't object.

Moreover, Columbia sensed a kindred spirit in Demogue, except that this girl was clearly more mature than herself and had found her own path.

Since Columbia had decided to board the train, Lauma naturally followed.

Everyone else had boarded the train, but Yakoda didn't dare stay alone among the Wild Hunt pack, so she quickly ran onto the train.

Once everyone was on board, before the Moon Hunters could be resurrected, the Star Train, controlled by Pam, took off and flew eastward with its tail between its legs.

After the Star Train took off, everyone was temporarily safe.

Inside the newly cleaned and tidied scenic carriages in Pam, the locals of Tewat were immediately awestruck, admiring the luxurious yet elegant train interior like country bumpkins visiting a grand palace. (Danlei had previously reimbursed the train's renovation costs, so the interior was naturally replaced.)

After Himeko asked everyone to sit down, she spoke to March 7th.
"In March, go to the party carriage and get some drinks for everyone."

My coffee machine broke down, so I won't be able to make coffee for everyone for the time being.

Upon hearing that Himeko was going to make coffee to bother the newly boarded passengers again, on March 7th, she immediately grabbed Danheng and dashed towards the party carriage, saying...

"Sister Himeko, why don't you chat with the guests? I'll take care of the drinks!"

"Danheng, come with me to get the drinks."

After March 7th and Danheng ran away, Himeko said to the others with a doting expression.
"March 7th is just that lively, please don't mind."

Philin, Lauma, and the other three naturally didn't mind.

At this moment, Columbia takes a liking to the Ether Spirit piggy bank that Star is keeping in the train (choose to keep the special Ether Spirit piggy bank in the Ether Front mission), and Luminous and Paimon are playing with her.

Yakoda was completely bewildered because she discovered that the train was full of unfamiliar things, so she dared not touch anything.

Philin and Lauma were naturally the only two who still remembered social interaction. Lauma made a praying gesture towards Himeko and said with a smile...
"I can feel the innocence of March 7th even without communicating with her. I really like girls like that."

Furthermore, I would like to express my sincere gratitude to everyone on the Star Train for coming from beyond the heavens to offer assistance regarding the Moon Hunters' problem.

Lauma's words were both a thank you and an inquiry into why the train crew was able to come from outer space.

Both Philin and Lauma are shrewd. If they carefully recall Ying's reaction before the arrival of the Star Train, they can guess that Ying was probably also notified of the reinforcements at the last minute.

Moreover, there is a key figure in the middle, namely a name that appears repeatedly in Paimon's words: Danlei.

Himeko naturally understood Lauma's implied meaning, so she skillfully introduced the Star Train to her and Flins and explained some basic knowledge about the universe.

Of course, it would take several tens of minutes to talk about all of this.

Furthermore, Philin and Lauma also needed to digest the many concepts that Himeko had mentioned. They knew very little about the universe before, and many of the terms were new to them.

However, just as Philin and Lauma were processing what Himeko had said, Walter suddenly narrowed his eyes, looked incredulously outside the train, and said...
"Gentlemen, we may have to pause our intelligence exchange. A dragon-like creature has appeared outside the train."

As soon as Walter said that, everyone rushed to the window. Ying saw the dragon outside and exclaimed in surprise.

"Dvalin! What's going on? Have we wandered into Mondstadt territory?"

　In theory, Welt should be able to see all of Schicksal's data after the ending of the first part of Honkai Impact 3.

　　Therefore, Otto likely knew about Dvalin's observations, which explains his surprise upon seeing him.
　　
　
(End of this chapter)