Did the interest in a man's body, which is unique to adolescence, trigger the mistake?! A shocking work in which a sister sneaks into her brother's room late at night after their parents are asleep and Kokoro rapes him. The little devil, who has become sexually awakened by this forbidden act, gropes her brother's penis and turns into an uncontrollable carnivorous girl! *There are no performers under the age of 18 in this work.