the sod sex science lab seriously researches sex. this time's theme is "intestinal juice". a thorough report by a female researcher who used herself as a test subject, including cleansing, dilation, enema, and anal sex. even while turning pale, she bravely tackles enema endurance, atom, and 3-hole fuck experiments, and a research record of a total of 15,000ml of intestinal juice super-ejection using the entire sod headquarters.