Miyu in wistoria

Miyu, from the Miyuverse, was abruptly cast into the world of Wistoria when her original world collapsed entirely. At the time, she and Shirou were still children. This Shirou, after Kiritsugu's death, could not bring himself to sacrifice Miyu to save a world teetering on the edge of annihilation. Instead, he prayed for her safety. Then, without warning, their world shatteredobliterated in an instant, not slowly, not gradually, but utterly erased from existence. Miraculously, Miyu was the only one who survived because Shirou Emiya wish.