Mio is a girl who loves drinking urine and is taken turns by her father, a perverted rope master, and her uncle, who is a freeloader with a virile sexual appetite. Having grown up in a twisted family environment, she has grown into a perverted girl who is required by her family for her body and finds happiness in being tormented. This is the story of a perverted family who lives in a forbidden garden cut off from the secular world and continues to have sex with their blood relatives.