After the idiot ice fairy Cirno was defeated by the unlikely heroine Derpy Hooves, an investigation went forth to discover the world of Gensokyo she had mentioned, or at least find where she popped out of.

However, when an attempt to close a breach goes horribly wrong, Twilight Sparkle lets loose a foe infinitely more dangerous than Cirno...one who could bring the whole of Equestria to its knees.

With Gensokyians and Equestrians becoming fast friends and foes, can the Elements of Harmony hope to band together and defeat Gensokyo's truest evils?
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This is indeed a crossover and a full-story sequel to my one-shot, Cirno Invades Equestria. I've also come to the grand conclusion that I don't need EQD's front-page popularity scheme. All I need to do is write for myself and enjoy what I write.

EDIT: This story is canceled. I love Touhou and MLP, but this crossover has gone untouched for too long, and I probably will never get back to it, much like many other stories in my gallery.