This is a World with Demons

Seeing that he had summoned another Assassin, and one summoned through Compatibility without a Catalyst, Dan Lei immediately began to wonder if he truly had a destined connection with the Assassin Class. Was it because he had used Kiara too much in the last two years of playing FGO?

However, Dan Lei felt he could understand his connection with this particular Servant.

The Assassin's true name was Kojiro Sasaki, who should be the first Assassin Class Servant in the Fate series games and related anime.

In FGO, during the first year after its launch, he became a common sight in the teams of free-to-play players clearing the first chapter and in subsequent farming dungeons for Dragon's teeth, thanks to his Assassin Class and extremely low acquisition cost. In an era when players had very few Servants, he became the dragon-slaying saint in the hands of common players.

Of course, Dan Lei was one of them. Furthermore, for a period afterward, Kojiro Sasaki remained the most cost-effective star-generating hand. Dan Lei had truly used him for a long time, and later, out of sentimentality, he had even used Holy Grails to raise him to level 100.

Therefore, Dan Lei raised his left hand, as if greeting an old friend, and said:

"Assassin, I am your Master."

Upon seeing the Command Spells on Dan Lei's left hand, Kojiro Sasaki said no more, bowed slightly, and replied:

"The contract is established, Master."

Seeing this, Dan Lei directly used Magic to lift the deer beside him, which had fainted from excessive blood loss. He used the Power of Abundance to heal its wounds, lest it die before they could find seasoning. He then said:

"Assassin, there is no Holy Grail War here, so you don't need to hide your true name. So, privately, I'll call you Sasaki, and you can call me Dan Lei.

Let's go find some seasoning and figure out how to cook this deer. It's better to strengthen our bond over a meal."

Seeing Dan Lei's casual demeanor, Kojiro Sasaki was quite satisfied. After all, he didn't want to follow a strict Master. He then followed and said:

"Understood, Dan Lei."

Since Dan Lei had descended on a mountain, he knew he had to head downhill to find civilization.

However, after only a few steps, Kojiro Sasaki suddenly flashed in front of Dan Lei and, facing a certain direction, said:

"Dan Lei, I hear the sound of someone running in panic ahead, and I smell blood."

Dan Lei heard this and stated that he hadn't sensed anything at all. As expected, his senses were still far inferior to those of these battle-hardened warriors.

However, deficiencies in the five senses could be compensated for with Magecraft. Dan Lei simply amplified his hearing slightly and then heard the sounds of panicked breathing and running in the direction Kojiro Sasaki was facing.

As he wanted to quickly gather information about this world, Dan Lei decided to intervene.

He would first go and see what was happening before deciding how to proceed.

So, Dan Lei directly used the Cloud Chant Technique to create a mist that enveloped him. A few seconds later, the light around Dan Lei distorted, his figure disappeared, and even his scent, sound, and heat were concealed.

The only thing that could reveal his presence was the footprints he left in the snow.

However, for Dan Lei, it wasn't too difficult to lighten his weight with Magecraft and then leap onto a tree. From there, he could simply walk along the branches.

As for Kojiro Sasaki, he could just materialize.

Walking along the trees, Dan Lei soon discovered the people running in panic ahead.

Upon seeing this person, Dan Lei confirmed which world he was in and even the point in the story's timeline.

There was no other way; this person was too distinctive.

Deep red short hair, matching red eyes, a conspicuous burn scar on his left forehead, a green and black checkered coat, and carrying a living corpse on his back.

This was clearly the protagonist of Demon Slayer: Kimetsu no Yaiba, Kamado Tanjiro. It was precisely the time when his family had been attacked by Kibutsuji Muzan, and he, knowing nothing, was carrying his sister, who had turned into a demon, down the mountain to seek treatment.

As expected, after Kamado Nezuko's demonization caused her to flail about, Tanjiro lost his footing and tumbled down the mountain path.

It was fortunate that the heavy snow had sealed the mountain, providing a thick cushion. Otherwise, if there had been any protruding rocks on the slope, Kamado Tanjiro would have been finished right there.

Just like in the plot, Tanjiro, who fell to flat ground, was unharmed. However, Nezuko had completed her transformation into a demon and, due to her demonic blood, had temporarily lost her reason and lunged at Tanjiro.

However, Dan Lei didn't watch any further. It was unnecessary to test the hardness of the axe handle Tanjiro used for chopping wood against Nezuko's teeth.

Dan Lei immediately dispelled the Cloud Chant Technique, condensed the magical threads for controlling puppets, and directly bound Nezuko, who was lunging at Tanjiro, into a bundle, restraining her in mid-air. He then jumped down from the tree and said:

"Is this a demon? It feels not much different from a dead apostle."

Tanjiro was startled by Nezuko's ferocious appearance and looked shaken.

So, Dan Lei walked over to Nezuko. After all, having just become a demon, she didn't possess the strength of later stages in the story.

Dan Lei even reached out and plucked a few strands of her hair, keeping them to research the nature of demons later.

However, just as Dan Lei was about to pinch Nezuko's limbs to study her flesh, Tanjiro finally reacted. He charged at Dan Lei, shouting:

"You! Stay away from Nezuko!"

However, Dan Lei had been paying attention to Tanjiro and had no interest in experiencing his "iron head."

So, halfway through Tanjiro's charge, Dan Lei easily turned, dodged, and lifted him by the collar, neutralizing the impact.

It had to be said that Tanjiro was just an ordinary person now, so Dan Lei's agility was more than enough to toy with him.

However, after casually tossing Tanjiro into the snow, Dan Lei still opened his mouth to explain:

"Young man, I just saved you.

This young lady might have been your family before, but she has clearly demonized now.

If I hadn't restrained her, she would have pounced on you and bitten you just now."

Tanjiro knew that the person who had suddenly appeared was telling the truth, but he was unwilling to accept it. With tears in his eyes, he said:

"Nezuko wouldn't! She definitely wouldn't! She's so kind, even if... even if she's become a demon, she can still control herself!!"

Faced with Tanjiro's words, Dan Lei just wanted to complain. Only you're the protagonist, where your words are law. Otherwise, try it with any other family; your sister, turned demon, would've eaten her brother in a heartbeat.

However, just as Dan Lei was thinking this, Tanjiro had just declared his belief in Nezuko. The ferocity in Nezuko's eyes instantly subsided by more than half. Although she was still struggling instinctively, she was crying, watching her brother weep.

But he definitely couldn't just let Nezuko go like this. To intervene in the later plot, it was best to have some kind of identity. Moreover, Dan Lei was a little interested in the Breathing Technique, so he had to continue the act for a while longer.

Thus, Dan Lei deliberately made flames appear on his hand and said to Nezuko:

"I understand how you feel, but your sister is truly no longer human.

The best outcome for her now is to be directly cremated and freed from suffering right here. Otherwise, if she harms innocents later, you won't be able to bear the responsibility."

After speaking, Dan Lei directly used the Cloud Chant Technique to summon water vapor, then instantly froze Tanjiro's feet to the ground.

This was because Kojiro Sasaki had already informed Dan Lei that the last guest had arrived.