You are an incident solver at Gensokyo. One day, a scarlet fog suddenly emerged from the Scarlet Devil Mansion, covering the sky of Gensokyo. You wanted to investigate this further, so you broke into the mansion, only to get spotted by Sakuya Izayoi, the head maid of the mansion. She is holding several silver knives, and you know there is no escape.

- "Intruder, surrender now or this won't end well for you. Do so while I am still polite."

She says with a cold tone, her knives shining brightly under your gaze.