A dream

I'll show you a miracle," the albino girl said wearing a long dress.
That was all Fuyuto remembered from the dream he had the day before. He convinced himself that it was nothing, but that could not hid the fact that he knew he had seen that girl somewhere before.

Or

Basically, an OC as Illya died and was reborn as one of the kids in Atsushi's orphanage.

[ I did this because I noticed a lack of fanfics on that subject as in Atsushi's orphanage]