Hundreds of years ago, it was the three families that established the Holy Grail War system, collectively known as the 'Founding Three Families'.

They are the Tosaka family in Japan, who discovered the huge spiritual veins contained in the underground of Fuyuki City, and managed Fuyuki City as a battlefield.

Sorgen, who moved to Japan from overseas, took the transliterated 'Makiri' in order to integrate into Japan, and became the Maki family, and built a system of heroic spirits and spells, so that the summoned Heroic Spirit servants obeyed the master.

Finally, there is the internationally famous alchemy magic family, the Einzberen family who are good at alchemy, they are good at making androids, the Holy Grail of the final summoning of the Holy Grail War, and they need the androids made by Einzbey as a medium.

In the Holy Grail War, there are two Holy Grails, which are the Small Grail and the Great Holy Grail.

The Little Grail is the victorious trophy of the Holy Grail War, fought by seven magicians and Heroic Spirits, and is known as the 'Holy Grail' that can be achieved immediately for any reason.

But in reality, the Little Holy Grail is just a vessel for storing the souls of the Heroic Spirits and their powers, and the fulfillment of some wishes is only a small incidental function, and the main function is to maintain the connection with the Great Holy Grail.

The Great Holy Grail is the founder of the Three Imperial Families, and when the Holy Grail was first established, the original purpose.

In this world, 'magic' and 'magic' are things that come from a variety of different concepts, all magicians use magic tricks, and things that can be completed as long as they learn and train are called magic, no matter how much time and budget are consumed, no matter how much effort is put in, it is impossible to accomplish what is achieved, it will be called 'magic'.

In the human mind, magic is equivalent to miracles, miracles, and when I say that there should be light, there will be light

The Great Grail can make people have this kind of power, and the power of the Great Holy Grail will make a hole in the real world and the 'root', so that people can reach the other side, the place where the root is located, and obtain real magic and magic skills.

To put it in a more 'scientific' way, the root is like a high-dimensional world, and the Great Holy Grail led by the Holy Grail War is to open up the three-dimensional and four-dimensional, or even higher-dimensional channels, so that the magician becomes a high-dimensional creature with incredible power for the three-dimensional world.

At that time, those who reach the root will be able to materialize their souls, be immortal in the true sense of the word, and be able to redeem the miracle of humanity and even the world.

The Holy Grail War was born to open this miracle, and the leylines of Fuyuki City are connected to a huge, almost endless magical power, and in order to use this magic power, it is necessary to open the 'key' of magic and the 'pipe' that transports it.

Gather the magic contained in the seven heroic spirits and use it as the 'key' to activate the magic array, and then export the magic power through the small chalice as a 'pipe', and the great chalice concentrates its power as a 'cannon mouth' to blast out the passage to the root to achieve the ultimate goal.

The Tosaka clan provided the leylines, the Einzberen clan made the Holy Grail, and the Maki clan developed a spell system that could enforce the command of the Heroic Spirits.

In a sense, it can be seen as an employment system in which the Tosaka clan was responsible for building the reservoir, the Einzberen clan was responsible for manufacturing the faucets, and the Makiri clan was in charge of the development and production and ordered workers to turn on the faucets.

For the Holy Grail War, only the Heroic Spirits are necessary, and the Magician is just a prop for the summoned Heroic Spirits to possess.

Even if the magician dies in the next battle, as long as he has the powerful soul of the Heroic Spirit, the plan can be carried out normally. As long as the battle takes place within the natural magic circle of Winterwood Town, the defeated Heroic Spirits will be automatically recycled by the Holy Grail and stored by it as an energy source to activate the connection.

Therefore, the Holy Grail War can only be fought in Fuyuki City, and cannot be fought in other places such as Haruki City and Natsuki City.

The Holy Grail War did not achieve its goal, and after the defeat, it would take another sixty years for a cooling-off period to be carried out, and the descendants of the three royal families would participate in every Holy Grail War, so they were very familiar with each other.

Especially the Tosaka family and the Maki family, although the two families have industries in various places, they mainly live in Fuyuki City, and because of the relationship between the three families, the two families are very close.

Tosaka Shichen gave birth to two girls, one named Rin Tosaka and the other called Sakura Tosaka, both of whom have strong talents.

But the magic engraving of the Tosaka family can only be inherited to one child, because the Tosaka family and the Maki family are close, and there are some problems with the Maki family.

Therefore, Tosaka Shichen left his eldest daughter Tosaka Rin, and passed the daughter of the Tosaka family to the Tomaki family and became the Tomaki Sakura, so that the Tomaki Sakura would inherit the magic mark of the Tomiri family.

Magicians in this world mainly rely on 'magic marking' to use magic, and magic marking is the result of the magician's life's research results, essence, thoughts, etc., solidified and formed, and it is passed on to the next generation, and the magic mark will become stronger and stronger, which can be said to be a magical legacy.

The magic circuit of a magician is largely determined by bloodline, and the strength of the magic mark passed down from generation to generation is generally proportional to the number of generations inherited, so the magic world is basically the first in bloodline

Because of this, Webber is very angry and inferior, because Weber's family has only been passed down for three generations, and the magic mark he has is very inferior to magicians.

The magic mark of the Tosaka family can only be inherited to one person, Tosaka Tokitomi has two extremely talented children, in order not to waste his children's talents, for the future of the children, plus it is also a better time to help the times of the Maki family, Tosaka Toshitomi will hand over Sakura to the Maki family.

In order to avoid suspicion and prevent the Ma Kiri's family from thinking that their own family was peeping into their family's magic carving, Tosaka Tokitomi broke off contact with Sakura after passing Sakura to the Maki family, and never visited Sakura, and I don't know what Sakura's situation is at Makiri's house.

And the Einzberen family, which is also one of the three royal families, is very unfamiliar because they live overseas and do not often appear in Fuyuki City, and have little contact with the Tosaka family and the Maki family.

At the beginning of the Holy Grail War, the three royal families will definitely participate in the Holy Grail War, and three of the seven magician masters of the Holy Grail War will definitely be divided by the three royal families.

The masters of the three royal families have been investigated with each other.

When Tosaka Tokitomi investigated the Einzberen family, he found that the Einzberen family had hired the famous magician killer Emiya Kiritsugu, and even recruited him as a son-in-law, and he had always believed that the magician involved in the Holy Grail War was Emiya Kiritsugu.

However, now, through the observation of the Assassin, the master who followed the Heroic Spirit Saber swordsman turned out to be an artificial person of the female Einzberen family, which surprised Tosaka Tokitomi a little.