With a mother's soul, Fate Harem night!

[Guest draynuy]

Pairings/characters: Shirou/Harem (Saber, Rin, Sakura, Illya, maybe Rider and maybe others if you want)

Summary: In canon, Shirou is pretty limited by his status of Incarnation and the fact his magecraft has been badly taught.

For this Challenge, Shirou origin is "Blacksmith" and his element is "metal" who is a basic combination of the four primordial elements (Earth gives the matter, Fire gives the heat to transform the matter, Wind gives the pression to forge the matter like wished and Water cools the matter forged into the final product).

For the butterfly in the story: Irisviel's soul don't die with the fourth holy grail, at the last moment she manages to dissociate herself from the grail but is linked to Fuyuki because of the Fire and Kiritsugu because of his own malediction. Iris discovers that she can been only seen by Shirou, because he has survived the fire, and by Illya, because she is her daughter, sometimes she can communicate in dreams with Kiritsugu. Because she has a residual link with the grail, Irisviel knows that the next "Holy grail war" will begin much earlier than expected and decides to correctly teach magecraft to Shirou, since Kiritsugu doesn't want to do it.

How a mother's soul can change the destiny of several people.

Other details: Because of his origin, Shirou can copy weapons but also, if he understands how, he can modify them or even create new weapon. Also because his origine is "Blacksmith" he is not limited to swords and sword like weapons, he can create and recreate all things that is associate with a forge, even tools and armor. The element of Shirou allows him to manipulate all elements, except ether (even if he can learn how to manipulate ether at a lesser degree), but not like he was a Average one or even if he had one element in particular (if a duel of fire spells would begins between Shirou and someone of Fire Element, it will be the person of Fire Element that will win).

Shirou owns, yet again, his distortion that make him want to save everyone he see (since it is a condition to use a reality marble and thus "Unlimited Blades works"), but he understand that his own pain can affect others too.

Shirou must meet and befriend Sakura and Rin during his childhood. He tries to aid them a maximum and to liberate them of their situations or at least to relieve it. (If possible don't do a Tsundere Rin.)

Since Irisviel is linked to Kiritsugu's malediction, each time Kiritsugu travels, she can travel with him (otherwise she is stuck at Fuyuki), so, each time that Kiritsugu goes to try to save his daughter, she profites of the occasion to going to discuss with her daughter and explain the situation, thus Illya know she was not abandoned for another child.

Irisviel finds amusing the proportion of Shirou to unknowingly capture females’ heart and decide to play with this and try to encourage these affections to become more sexual.

Irisviel sacrifices herself in place of Illya as the container of the Fifth grail, since it is the soul that contain it.

At the end of the fifth "Holy Grail War" (but if possible, not the end of story), Shirou uses the Third magic of Heaven's Feel to preserve the soul of his loved ones and to create a human body for them (Saber and Illya, maybe Sakura in fonction of how you use her and maybe Rider if you add her to the Harem) (The body of Illya must match her mental age {teenager from what I understand}).