To save her hopeless adult younger brother, his secretly sex-crazed older sister agrees to become a yakuza man's flesh slave for ten days. Intended as a sacrifice, she instead falls immediately for his tireless thick cock. She convulses, makes ruined orgasm faces and rides him herself, even urinating from the pleasure. Day and night he pounds her wherever he wants, filling her filthy pussy with fourteen creampies until she is completely broken by sex.