I transmigrated and transformed, but what the heck does it mean to become one soul in two bodies?
"Who are you people?!" asked Tohsaka.
"Mongrel, you have successfully attracted my attention," said Gil.
"My sense of justice is not wrong!" said Kiritsugu.
"Why do you look exactly like me?" asked Illya and Shirou.
Faced with these questions, the brother and sister smiled with delight.
"Archer, Emiya Shirou."
"Caster, Illyasviel."
"Making our entrance!" x2
Basically, it's the story of a transmigrator with the bodies of Illya from the Prisma Illya world and the mighty hero Emiya, causing trouble all over the place during the Holy Grail War…
(The worlds visited are the Fourth Holy Grail War, the Fifth Holy Grail War, and Magical Girl Illya. These are the required worlds. The bonus chapters include Puella Magi Madoka Magica, Super Circle Man, and others.)
P.S. The Fourth War arc isn't very well written, so feel free to skip it. The Prisma Illya arc will be fun…
