Touhou Lost Word

The place I wandered into is "Fantasyland". I am ...... who? When the hero wakes up, he finds himself in the garden of the Murgatroyd mansion. The hero calls out to Alice and Patchouli, who are preparing for a tea party, but they have never met her before. They think they are acquaintances of Marisa, who is running late, and the hero decides to help her with the preparations. Marisa shows up late as they are chatting and laughing, but Marisa doesn't seem to know the protagonist either, saying, "Well, who are you? Marisa also does not seem to know who the protagonist is, but the two of them are taken aback and say, "You're so random," and the tea party continues. Then Reimu appears and shows them something. It was a beautiful jewel that even Alice and Patchouli did not know.