Michie Itô is great as the genius girl who breaks out in an allergic rash when she gets near stupid people, and who gives birth to a girl who has no bellybutton because she was born in an egg.
It's definitely not a pink film and I even hesitate to call it weird. It's more just earnestly underachieving. There's a wholesome quality to it too. It's strangeness isn't typical of Japanese weirdness, it's more like midnight-movie camp. It's structure is that of a fifteen year old girl (the one without a belly-button) narrating the secret of why her small community has such a high fertility rate: "It all started fourteen years ago when 'that man' came to our village", and then it takes its sweet time getting to the present. There isn't really an allure that something erotic might happen, although Michie Itô's character has a way of leading you to the edge every time she shows up, but there is a continuing implication that the story might unfold in an interesting and fulfilling way.
It's not Christopher Guest weird, where everyone seems to exist in their own orbit, and it's not Satoshi Miki witty weird, it's more like Godzilla ... with animated sequences from a third-grader thrown in. NYAFF Trailer @ YouTube