“This is a story about a world that splits into billions of endless worlds. Although stories of parallel worlds have been written in many mediums (novels, movies, manga, etc.) in the past, I consider this story The Princess of the Never-Ending Castle presents a new way to show parallel worlds which I’ve never seen before. At the same time, this graphic novel also includes experiments of manga expressions. Please enjoy this work that features new challenges in various parts.” –from the introduction by Shintaro Kago.