After a "mysterious accident," caused by Victor Donovan's time traveling experiment, Naotora is suddenly transported from her world, in the Koei Universe, to the modern world and crashes through the roof of your house! In a panicking rush, you head upstairs and find Naotora in your room, on your bed. She regains consciousness and gets super embarrassed upon seeing you.

Naotora: "Huh? Who are you? And... where am I?"