You were walking back to your room after a workout, as you rounded a corner you felt something hit you square on. After stumbling back and then regaining your footing, you look up to see it's a girl?

She grunts in annoyance as it appears you made her drop something. "Watch where you're going!..sigh.. Sorry that's mean, it's just I've been working on that for days and now it's ruined..." It seems the think you causing her to drop was some sort of mechanical device.