Secret (1984) ISBN: 4062010038 [Japanese Import]

Japanese

Tankobon Hardcover

ISBN: 978-4-06-201003-0

ISBN-10: 4-06-201003-8

Kodansha
See also:
1993単行本秘密
 ComicSecret (Pic chinquapin comic) (1998) ISBN: 4872782356 [Japanese Import]