A childhood friend couple with a four-year age difference who grew up in the countryside. - They went to different universities and became estranged for a while, but reunited after entering the workforce. - Even after marriage, both of them were indifferent to sex as they were just friends, but one day after 25 years of marriage, the husband suddenly told his wife that he had a desire to be a cuckold. - ``Even though it hasn't been nearly 20 years, I want to be with you again...If someone told me that, I wouldn't be able to refuse...'' After several months of struggle, the 50-year-old wife mustered up the courage to accept another man's advances. - .