Martian Successor Nadesico
Among other shorts Aikawa wrote for magazines and never republished are pieces set in franchises he'd worked on elsewhere like "Dangaioh" and "Neo Ranga" (intended to become a full novel, which never came to be); as well as original stories. Novels for "Vampire Princess Miyu", "The Hakkenden" and "Martian Successor Nadesico" were announced, but also never came to be.