Hiroyuki Morioka has written at least 4 books. Their most popular book is Seikai with 4 saves with an average rating of -⭐.
Series
3 primary booksAuthored 100% of series
Seikai no Monshou is a 3-book series with 3 primary works first released in 1996 with contributions by Hiroyuki Morioka and Sue Shambaugh.
Series
3 primary booksAuthored 100% of series
Seikai Series is a 3-book series with 3 primary works first released in 1996 with contributions by Hiroyuki Morioka and Sue Shambaugh.
Series
1 primary bookAuthored 100% of series
Crest of the Stars Light Novel is a 1-book series first released in 1996 with contributions by Hiroyuki Morioka and Giuseppe Di Martino.
Series
1 primary bookAuthored 100% of series
The Stars Series Light Novel is a 1-book series first released in 1996 with contributions by Hiroyuki Morioka and Giuseppe Di Martino.