Japan has always been a strange country with unique customs that are not wrong, and this movie is a testament to one of those customs that perhaps not many people know. That is the custom of facing and licking women's private areas every time they meet or party together. It sounds very absurd, but Takigawa's wife, from someone who feels disgusted about it, has integrated and also felt extremely interesting after a period of time with her husband's family and knowing this traditional custom. Sons licking their mothers, fathers licking their daughters, and brothers licking their children is something that happens every day in this lewd family. This must be a family that puts women first and they consider these actions to be the best expression of that. There is also a special thing that every time a new member of the family is added, there will be a launch ceremony, that is, the person will have to strip clean and let everyone in the opposite sex participate in group sex, including the father. brother, brother or husband - that is the case with Takigawa.