# Chapter 1: Index of Forbidden Magic
## Fairy Tail
[Prompt: Hunter must choose within 10 seconds, otherwise random selection will be made.]
Su Xiao hesitated for a moment. He had many things to do this time, so he couldn't choose too large a world. After only a brief hesitation, he selected a world.
[Spatial coordinates stabilized, consuming 0.021 ounces of Space-Time Power.]
[Based on consumed Space-Time Power, Contractor's minimum comprehensive evaluation for this world must reach C- level.]
[Drip, detected that Hunter's strength differs too greatly from Contractors in the same derivative world. Special identity will be arranged.]
Su Xiao instinctively lowered his head, but the back of his head still felt as if struck by a hammer.
That's right, a hammer strike. In the past, it was at most a blunt blow. As his strength grew, the heavy impact during teleportation became increasingly intense. Could it be that they were afraid a blunt-force level strike wouldn't knock Su Xiao unconscious? So they upgraded to a hammer level?
When Su Xiao's consciousness recovered again, he found himself in a "battlefield."
Upon arriving at this battlefield, Su Xiao immediately sensed something was wrong. This wasn't inside a derivative world at all. The overwhelming piles of corpses around him were all fake. This was a place similar to a barrier.
"Who are you?"
A knight clad in black armor stood atop a distant pile of corpses. Except for his eyes, the armor completely covered the knight's entire body.
At this moment, the knight's figure appeared somewhat illusory. From his aura, he was not at his peak condition.
"Who I am doesn't matter. You only need to know that only one of us can leave alive."
Su Xiao drew the Dragon-Slaying Flash from his waist. Because his strength differed too greatly from the Contractors about to enter the derivative world, and because the world he was about to enter wasn't an open world, Reincarnation Paradise had arranged a special identity for him.
"Full of bloodlust, a battle-hardened warrior. You are worthy to fight me."
The black-armored knight descended from the corpse pile. Seeming to sense that Su Xiao was qualified to be his opponent, he even nodded to Su Xiao as a sign of respect.
"As a knight..."
The black-armored knight suddenly thought of something and shook his head. He was no longer qualified to call himself a knight. Simply the fact that he had committed adultery with the queen meant he had no right to call himself a knight.
"State your name."
The black-armored knight gripped the hilt of his knight sword with both hands, holding the longsword upright before his eyes. This was a pre-battle courtesy.
"White Night."
Su Xiao rolled his shoulders. Although his opponent wasn't at full strength, he wouldn't be easy to deal with.
"I am a Knight of the Round Table... no, I am the King's Betrayer, Lancelot."
Boom!
Su Xiao and Lancelot simultaneously stomped the ground beneath them. Long blade and knight sword clashed together, sending a shockwave spreading through the barrier.
Within this barrier, the two engaged in a deadly struggle, because only one person could leave here.
...
Inside the derivative world.
In a dim underground chamber, a decrepit old man was staring at a man with white hair.
The old man wore a smile, his eyes toward the white-haired man filled with mockery. He didn't even bother to conceal this mockery.
The white-haired man turned his head, seemingly unwilling to look at this old bastard any longer. The insects inside his body were swimming through his blood vessels. Every millimeter they moved brought unimaginable pain. Fortunately, the left half of his body had completely lost sensation.
"What are you standing around for? Everything is arranged. Begin."
The old man tapped his cane on the ground, pointing at a magic circle drawn with human blood, while letting out a few sinister laughs.
The white-haired man took a deep breath, trying as much as possible to ignore the excruciating pain inside his body, and began chanting a spell.
"Your body is under me, my fate is on your sword..."
The white-haired man's voice grew louder. An object within the magic circle in front of him began to glow.
"Behind the malicious one, make your eyes chaotic, your mind frenzied, the prisoner trapped by the cage of madness. I am the one who manipulates this chain..."
Boom!
Light burst forth. A mutilated corpse cut into four pieces appeared on the magic circle, rolling black smoke spreading over the remains.
The old man beside him was somewhat stunned. He had lived for several hundred years and had never seen anything like this.
"This corpse... can it really be used for battle?"
The white-haired man's voice trembled slightly, despair in his heart. The reason he had gotten involved in this matter and turned himself into this wretched state was simply to save two people. If he could save those two, he wouldn't mind going straight to hell right now.
"Wasting a year of my time. A useless piece of trash is indeed..."
Just as the old man finished speaking, a crisp cracking sound came from above the magic circle. Within the extremely unstable space caused by the summoning, a hand wrapped in a crimson red metal armguard suddenly reached out.
With the appearance of this hand, a crack gradually formed in the space. Thick blood energy surged out from the crack, pushing the old man and the white-haired man back a few steps.
The white-haired man staggered, wanting to rush forward, but stopped after only two steps. His pupils trembled, as if he had seen something horrifying.
In that spatial crack, the white-haired man saw a mountain of corpses and a sea of blood!
A man wearing a black trench coat, holding a long blade, walked out from the spatial rift. A dog followed behind him. A burst of cold air sprayed out from the spatial crack.
"Whoosh~"
The man who walked out of the spatial crack exhaled a breath of cold air. The old man and the white-haired man were on high alert.
"Old bug, what are you looking at?"
In the cold air, a pair of sharp eyes fixed on the old man.
Seeing this, the white-haired man's hands trembled slightly. He wasn't afraid; he was excited.
The white-haired man's already somewhat dim pupils were filled with longing. He longed for this old bastard who had tortured him for a whole year to die, even if this man was his "father."
The old man's expression stiffened. He sensed a threat from the cold air. This feeling hadn't appeared for a long time. The other party seemed to have some ability that could kill him.
"Kariya, control your Servant!"
The old man growled, but he didn't notice that the white-haired man named Matou Kariya had a twisted smile on his face.
"Can't do it, hahaha, I... can't control him."
Matou Kariya threw his head back and laughed, looking at the three red brands on his arm.
"I'm just his mana supplier. I can't control him. If I anger him, he might even kill me."
Hearing the white-haired man's almost manic laughter, the old man slowly retreated backward.
Su Xiao walked out from the cold air. He now finally understood that he had arrived in this derivative world as a pseudo-Servant. This world was the Holy Grail War world.
Unlike semi-energized Servants, Su Xiao's body hadn't changed. Being a pseudo-Servant was just an identity. As for Matou Kariya's true Servant, Lancelot, he had already been cut into four pieces by Su Xiao a few minutes ago. The energy that had drifted out had already been absorbed by the Holy Grail.