An interesting theme I keep coming across regarding pre Modern Japan is the extreme difference in sexualisation between the upper class and the rest. For example a Portuguese person said that the Japanese didn't care what their daughters got up to and where they went and then there is the ancient custom of Yobai where peasants would sneak into each other's houses and do rude things(it varied by region but it could involve or exclude married people, unmarried people and people from other villages), yet a contemporary of the Portuguese traveller writes in the Hagakure(a codification of how samurai should behave) that daughters should be kept at home, never let out and not be allowed to ever interact with men, it also mentions a samurai who was walking in town and needed to use the toilet so entered a random house and asked to use their's, a woman who was home alone at the time let him and later both would be executed because of it on the grounds that he had undressed in a house alone with a woman(to use the toilet) and she had let him.