Sora, Reimu, Donald and Goofy find Pluto who leads them to a mysterious, odd castle, where they might be able to find King Mickey, and reunite with Riku and Marisa.

Youmu fly's to the Hakurei shrine to see how the preparations are going for the upcoming festival, but accidentally fly's into a new unknown world. How will Youmu react and deal with her new life, and will she ever be able to get back to Gensokyo again? Find Out!

Youmu encounters a mysterious person, which would change her entire life forever.