◯ Magazine published in the 1950s and 1960s (Showa era) 　　　【The Future of SEX: Continued Wisdom on Sex Life】 ◯ Contents 　・Published: June 1963, First Edition 　・Author: Dr. Kuniken Sha, Doctor of Medicine 　・Publisher: ㈱Ikeda Shoten 　・263 pages 　・Excerpt from the preface: 　　"Liberating sex in the correct sense and disseminating knowledge of sex 　　is one of the absolutely necessary things for human happiness." 　　"The large amount of content on 'Avoiding Failure on the First Night' is because 　　it is necessary for both parties to obtain correct sexual knowledge in advance 　　in order to prevent it." ◯ Excerpts from the Contents 　・The Future of Sex Life: The issue of frequency of intercourse, focusing on replenishment rather than strengthening 　・Sexual positions that don't tire you out, positions using the bed (with photos) 　・How to avoid failure on the first night ◯ Other 　・There are no tears or missing pages, but there are stains and scratches due to long-term storage. 　・There is a crease on the back cover, so it is packaged with the back cover facing out.