30 books • 2 series
Book #13: Kakegurui - Compulsive Gambler -, Vol. 13
Book #14: Kakegurui - Compulsive Gambler -, Vol. 14
Book #15: Kakegurui - Compulsive Gambler -, Vol. 15
Book #12: Kakegurui Twin, Vol. 12
Book #14: Kakegurui Twin, Vol. 14