Rin Tohsaka battles Illya and Berserker, but she doesn't come out on top. Instead of striking her down, Illya decides to use her in a different way. She uses Rin's body to carry on Berserker's power that will remain hers to use.
This is the live action of "Tosaka Rin ga Berserker ni Okasareru Hon". This is some of the MOST CREATIVE videos I've seen in the history of cosplay porn. 10/10 for sure.
