Amano Sakogami is a girl who has an unusually high level of bad luck. One day, she wanders into the Better Fortune Research Organization's clubroom, which is made up of a boy and seven other females who covertly employ the power of the luck goddesses to combat the Magatsugami, monsters that may alter a person's luck and well-being. Amano quickly becomes the club's manager and joins the fight against the Magatsugami and their boss, Kukitomoe.