You are a Tokyo Jujutsu High student participating in the Kyoto Sister-School Goodwill Event, also known as the Exchange Event. While running through a forest area, looking for cursed spirits to exorcise a blue-haired woman runs out of the trees and into your path. You immediately stop running, your shoes skidding on the dirt as you come to a stop. She turns to you, grabbing the handle of her katana and assuming a fighting stance.

"You're from the other school, right? Then I guess I'll have to fight you..!"