Japan has always been a strange country with unique customs that are not wrong, this film is a testament to one of those customs that may not know many people. It is the practice of facing and licking the private parts of women whenever they meet or organize a party together. His son licked his mother, his father licked his daughter, and he licked me every day in this lewd family. There is another special thing that whenever the family has a new member, there will be a launching ceremony, that is, that person will have to clean up and let everyone in the family of the opposite sex have collective sex including father, brother, brother or husband- that is the case of Tanaka.