"Edward, ah, Edward! Why are you so stupid?! " 

"Oh, even people who believe in God do such ugly deeds.... In this case, reading the Bible without understanding the real truth, will inevitably not make you attain the truth, blindly following the teachings of the ancestors and giving up your own thinking is truly pitiful."

The boy named Edward Alexander Crowley whispered in a perplexed voice mixed with a tinge of mockery:

"...In this case, it is up to me to find out the truth, it is up to me to retrieve the road lost because of people's stupidity and blindness!" 

... 

Early Twentieth Century, 1919.

—London, England. 

Roy Crowley put down the book he had just read on the old wooden table heavily. He rubbed his forehead with his hand and whispered tiredly: 

"...this book is really worthy as a 'Book of Magical Ways'. Just reading this 'Original Grimoire' is as painful as consuming brain poison."

"If a normal person reads it, he will definitely be eroded by the 'poisonous' content, and will either go crazy or die."

"...Ha, sure enough, I'm not a normal person? Or should I be grateful towards the blood flowing inside my veins?"

Roy laughed at himself mockingly, got up from his chair and took a deep breath to calm his chaotic mind. 

He turned his sight and turned his attention to the surroundings. A slightly old apartment, with some old furnitures arranged orderly. 

The furnitures were wiped clean, the few decorations on the walls were also unique, and there was a small potted plant placed beside the window sill.

There were no objects of luxury and comfort inside the room. The most valuable thing was the bookcase densely packed with books placed in the corner of the room. 

From the furnishings in this room, it can be seen that although the owner of the room is not someone impoverished, he is absolutely unrelated to the word 'wealth'.

But, Roy was very satisfied with his 'cozy little hut'. In early twentieth century just after the end of World War I, being able to live in the residential area of London with his sister, instead of dwelling in slums was already a blessing for him. There was nothing more he could possibly ask for. 

I don't know if I should thank the father who I have never met, or the mother who died not long after giving birth to us siblings?

Ah, I should probably be thankful to the mother. Although this biological mother was not able to nurture us, it was more of a force majeure.

As for the existence called father, he may have even forgotten us siblings.

Fortunately, Roy was a reincarnator who already had some work experience before his reincarnation. 

Although the life from scratch after reincarnating into another world was difficult, he still worked it out somehow. With his own maturity, he brought up his sister smoothly.

Thinking about this, Roy looked at the book on the table and touched it with his fingertips with a complex expression on his face. 

The cover felt cold, and the book looked very new, without any historical heaviness, but if this book is thrown into the magic world, it will definitely cause a sensation among all magicians.

—"Book of 777"

—Author: Aleister Crowley

"A Certain Magical Index..."

Roy murmured slowly, then shook his head helplessly.

Soon after he reincarnated into this world, he already knew which world he had reincarnated into.

He is very familiar and unfamiliar with the world of 'A Certain Magical Index' at the same time. 

Familiar, because he has seen this anime before. Although he can't recall many minute details, he does remember some general plot of the anime anyway.

Unfamiliar, because he seems to have transversed a 'little bit' earlier before the start of the plot. 

To be specific, a whole hundred years in advance! Let's not talk about the all 'famous' Academy City.

Even his father, Aleister Crowley, the big boss behind the scenes is still alive and well, rather then floating inside a nutrient tank like a hanged man. 

At this point of time, when interpersonal relationships between different characters are unfamiliar and the various forces are even more unfamiliar to him. 

Roy did not went out to mix in the magical world to die, but choose the most correct decision, which is to be live a simple, honest life with his sister in this shabby London apartment. 

Roy didn't have any idea of visiting Aleister Crowley at all, he even wished that this father of his could roll out as far as he could. 

If his memory is not wrong, currently Aleister Crowley was being chased by the magicians, churchs, magic cabals, magic gods, etc. 

In fact, he was being pursued by everyone. At this time, the thing most desirable to any magic user in this world is— Aleister Crowley's death! It is not an exaggeration to say that he is the enemy of the whole world.

If you dare to run out and say that you are Aleister Crowley's son, you betcha, you will have to face countless magicians chasing you like mad dogs, hunting you day and night, it will be difficult for you to live a day more, no, even a minute more. 

Now Roy feels quite fortunate that Aleister has forgotten about their existence. Even as a father, he has forgotten his son and daughter, let alone other magicians.

This gave Roy and his sister a relatively stable living environment.

Moreover, Roy can't do anything even if he wants to go out and do something. He has no innate superpowers, and at this time there is no Power Curriculum Program of the Academy City, so there is no question of even becoming a esper. 

Roy knows how to cast magic, but only a little. These magic were learned by Roy through self-study. 

He did not receive basic education in magic since he was a child. So, he could only rely on some of the magic books left by Aleister. 

Roy's mother should have been Aleister's close lover, and Aleister had definitely lived in this apartment, otherwise he would not keep so many of his books here.

The books in the bookcase were currently Roy's greatest wealth. And the most valuable of these wealth is the book Roy put on the table—"Book of 777".

In the Christianity, the number 7 has a great important, representing completeness and perfection.

God took 7 days to create the world, and he also took rest on the seventh day.

In the Book of Revelation, God listed 7 church. 

7 are the seven spirits of God. In the process of God's judgment, there are seven seals, seven trumpets, seven bowls and even seven plagues.

God gave Noah 7 days of grace. 

Solomon built the temple in seven years and there are even 7 biblical feasts. 

Jesus Christ spoke the famous 'Seven Last Words'. 

--Etc, etc.

'777' is the most important number in the Bible, and it has great magical power.

If anyone in the magical world sees the 'Book of 777', they will doubt that this is a holy book related to Christianity. 

In fact, what is recorded in this book is indeed some analysis and mysterious rituals of the Kabbalah, Tree of Life, some Angel's name, it even possess content on astrology and divination.

(Author's Note: 'Book of 777 ' actually exists in reality, and it was written by Aleister Crowley.)

But only Roy, who has read this book for more than ten years, knows that the knowledge recorded in 'Book of 777' are just the most superficial things on magic. 

What this book really explains are the thoughts of Aleister Crowley. It can be said to be Aleister's masterpiece, his true path of 'magick', as he describes it. 

What is recorded in this book is not mainly about the Kabbalah, the 'Tree of Life' at all, but the inverted tree twisted by Aleister, also known as the 'Tree of Evil', Qliphoth.

The Qliphoth is the completely opposite tree to the Kabbalah, covering another side of the world.

Though the Qliphoth is often interpreted as a 'Tree of Evil', being the inverse of the Kabbalah which is protected by angels, having demons as the guardians of its spheres, it's essence is not an absolute evil. 

With appropriate training and experience, it can assist in acquiring dangerous hidden knowledge found in the world.

However it will inevitably trip up anyone who tries to view it with insufficient training or resolve.

'7' was originally the sacred number of the Christianity, but Aleister connects the '7' with the 'beast', so that this magical code became a book full of 'human evil', and the whole article is filled with paradoxes. 

Twisting the holy number, a act against God showed Aleister's arrogance! 

"He deserves to be called the 'Beast of the Apocalypse', 'the most evil man in the world', 'Beast666', this is simply abandoning the world created by God."

Roy exhaled heavily. Just thinking of the contents recorded inside 'Book of 777', made Roy feel a deep pain in his head. 

The 'toxin' of the book describing the original sin, full of 'human evil' seemed to almost destroy his spirit. Dragging his soul inside a filthy, vicious swamp. 

At this time–

"Brother, I'm back!"

A sweet and pleasant voice came from outside the apartment door.

_______________________________

Some of you may have difficult in understanding his 'personality' in the beginning and even find it bizzare but it will be made fully clear to you all within 50 chapters.