Happy Seven

Amano Sakogami is a girl who suffers from an overwhelming amount of bad luck. One day, she accidentally stumbles into the clubroom of the Better Fortune Research Organization, where she meets a boy and seven girls who possess the powers of luck deities and fight against the Magatsugami—creatures that affect people's fortune and well-being. Amano becomes the club's manager and eventually joins their mission to battle the Magatsugami and their leader, Kukitomoe.