GrrrBooksPerks of Being an S-Class Heroine, Vol. 6Perks of Being an S-Class Heroine, Vol. 4Perks of Being an S-Class Heroine, Vol. 5Perks of Being an S-Class Heroine, Vol. 3Perks of Being an S-Class Heroine, Vol. 1Perks of Being an S-Class Heroine, Vol. 2Author data: Open Library