One day, Nitori was doing research on new inventions just like she always did. But just then, she received a report from a fellow kappa. She'd witnessed the appearance of some strange machines. "What kind of machines were they, then? Huh? Flying ones? Oh, well, now I HAVE to see them for myself!" And thus began Nitori's journey to figure out what these machines were. This game is a Touhou Project fangame. It's a shooting game where you defeat bosses while dodging danmaku. Customize your weaponry to one of 576 possible combinations, and overcome the danmaku coming your way!