Ko Young-geun: Sex knowledge and dating in the 90s

The author, in his 80s, dated a woman in England for five years and let her go from England to Korea six times. She was 90, and ended her first month of love, and then at 91, after five days of sex, she ended her relationship. And this three-time relationship since the 80s was due to sex knowledge. After his 80s, he studied sexual knowledge and gathered 17 sexual knowledge that helped him and his wife to get married and read it in a book.

Korean title: 성 지식과 90대의 연애

Korean author: 고영근

Korean publisher: 지식과감성

ISBN-13: 9791165528928