This was an amazing prequel! Sun's writing style kept me glued to the story and aching for more! There is also so much to learn about the Japanese culture in these 69 pages, so I can only imagine what there is to learn in the actual book. In the prequel we meet the main characters Katie and Tomoshiro. Tomoshiro has so much going on and yet he can't explain any of his issues to anyone. Katie's mother has just died and she has moved to Japan with her aunt. Suddenly, weird things begin to happen to the both of them. Things they can't explain... It serves as the perfect lead in to the actual story.