Fantasy Assassin in a modern world

The morning ceremony passed by quickly, and as expected many students were shocked by the change of Loki's demeanor. The gloomy, lanky, librarian a confident well-built good looking man. Well, he was already good-looking before, but because of his demeanor, no one noticed.

Seeing the reactions of the girls, made some of the male students frown. After the morning ceremony, the students headed back to their classrooms, as for Loki he headed to the library.

The library of the school was a separate building and was located in between the Martial arts course building, and the regular course building. The library was a three-story tall building, and it was the largest library in the city. This library supposedly houses books from more than a millenia ago.

'As expected of the supposed best school. This is the first time I've seen such a large library.' Loki entered the building and upon entering he was startled by what he sensed. There was an abundant amount of mana within these walls.

It was still a far cry from the mana in his old world, but this was three times better than the mana he was receiving from the outside. Loki closed his eyes and started to sense the surrounding area. After a moment of silence, Loki opened his eyes.

'This place is the same as a holy ground from my old world. The concentration of mana does not leave the building and continues to gather into this place. Not only that but I could sense that some of the books here were actual grimoires.'

Loki immediately headed to the nearby shelf were he sensed one of the grimoires. Upon picking it up, he looked at it intently. The book was old but not as old as he expected it to be. Based on the overall look it felt like a copy of a much older book. It was an occult book about monsters. Loki did a quick scan of the book's content.

The book was basically ways on how to spot, catch, tame, and or kill monsters. To the people of this world, this book might look like a fantasy created from a superstitious age, but to Loki, it was a treasure. This book was a good read for those interested in such things but aside from that, it was worthless to the current people of this world. Since the ideas and methods used in this book require one to have knowledge of mana and know how to use said mana. So to Loki, who actually knew how to use mana, this book was a great find.

There were many techniques in this book that he could use with the limited amount of mana he had. Not to mention they were techniques that were good to use in assassinations. For example, there was this one technique that allows you to place a certain scent on any object and you would be able to follow it for miles. The scent will never go away for as long as the target lives. It can only be dispelled by the caster of the technique.

Yet the best thing in this book was the knowledge of the various monsters that should be living in this world and how to tame them. Even in his old world, there were no techniques that could tame those savage beasts. Yet here they had the knowledge to do so.

'This has proven my theory, this world did have people that could use mana. Yet for some reason, there are none left, and the mana has diminished greatly... So what's happening in this library? Is it really by chance that I was transmigrated as the librarian of this library?...' Loki shook his head and sighed.

'Let's stop thinking about that for now, I still want to check on the other books that are emitting mana.'

Loki then started going around the library getting all the books that had traces of mana on them. After searching for an hour, he got hold of at least six grimoires in this one library. He was rather excited to see things that he was familiar with within this new world of his. Not to mention these six grimoires were more than any mage of his old world owned.

Back in his old world mages valued their knowledge and were afraid of people stealing them, so most never put their knowledge into writing. Only the truly exceptional ones ever did so, as they believed that none would dare steal from them. Yet even then only a few of those writings become known as grimoires.

A grimoire in his old world was a powerful artifact filled with the knowledge of a craft. Once the craft has reached a certain level, the knowledge becomes a grimoire. A book that emits mana like a living person, and it is said that the more powerful grimoires have their own will.

'These ones aren't those kinds of powerful grimoires. I have seen some grimoires, and these things aren't all that great, but the knowledge they have is different from what I know. A magic system that is different from my old world. There should be many more grimoires in this world... This is rather interesting. Well, for now, how about I read some of these things.'

Loki looked at the six grimoires he had. The book of monsters, the book of demons, The unknown history of sorcery, the witch-hunt, and the book of basic charms. Loki was the most interested in the book called the unknown history of sorcery so he started from there.