The legend of sparda

It all started 2000 years ago when the demon king Mundus after conquering the demon realm located in the reverse side of the world, decided that he would rule the human world as well the humans could barely fight back because demons were a lot more stronger than the humans especially because the demons range from anywhere to monstrous beasts to phantasmal beasts which magecraft from the age of Man could not even damage them and unlike other phantasmal species or divine spirits they do not acquire mystery to exist in the human world, the reason why is because a long time ago both the demon realm, and the human world existed as one but later was separated by the first known demon king Pluto.

And because of that demons can walk among humans even when the age of gods ended.

And because of the end of the age of Gods that Mundus decided to invade the human world without the gods in his way, he could conquer the human world without worry,though Mundus could rival full fledged, chief gods like Zeus and not divine spirits, which are lesser versions of God's, the humans could put up little resistance, the only ones who could fight and kill the more powerful demons were the true magicians, who could use true magic like the most famous of them Kischur Zelretch Schweinorg master of the second true magic kaleidoscope , even then they were no match against Mundus especially Zelretch who recently acquired the kaleidoscope not too long ago, all hope was lost until sparda the general of Mundus betrayed his own kind and sided with the humans, he defeated Mundus then sealed him away and with the help of the true magicians, and a priest, sealed the demon realm from entering the human world again because of what he did when he died he ascended to the throne of heroes and became one of the seven grand heroic spirits taking the position of grand saber , even till this day his name is known by the common folk as the legendary dark knight Sparda but to them, he was some legend a fairytale, but to the moonlight world he was the savior of mankind even individuals such as the king of knights Artoria Pendragon admired, and respects him even such a person like the king of heroes Gilgamesh respects and emits his strength, before he died he had two sons Dante and Vergil he gave each of them a weapon infused with his power, the rebellion he gave to Dante and Yamato to Vergil, to protect themselves, and in case, if Mundus ever returned, that they could defeat him, he also had a grandson named Nero son of Vergil but he had another grandson named Victor son of Dante and this is his story.