On this day, the Fourth Holy Grail War that would drive Kiritsugu to despair had yet to begin.
On this day, Kiritsugu was still a boy learning magecraft under his mentor and adoptive mother, Natalia Kaminski, before they ever got together.
On this day, none of it had happened yet. Then an outsider's soul was suddenly summoned into the body of a dying boy on a battlefield. Rescued by the Hero of Justice, Kiritsugu Emiya, he entered the world of Type-Moon magecraft.
And so the wheels of fate began to turn, changing everything. Is this a story of salvation, or of destruction…
Currently underway: Fourth Holy Grail War
Master and Disciple Arc - Clock Tower Arc - Night of Wallachia Arc (Holy Church Arc) - Einzbern Arc - Roa's Reincarnation Arc (Arcueid Arc) - Fourth Holy Grail War
The protagonist is more like a professional killer than a mage. He spends far more time using guns than magic.
The heroine is undecided, but I won't break up any original pairings. Don't read if you don't like that. Anyone who nitpicks the names loses…