Kakegurui

 Kakegurui – Compulsive Gambler is a Japanese manga series written by Homura Kawamoto and illustrated by Tōru Naomura, which began serialization in Square Enix's Gangan Joker from March 2014 and is licensed in English by Yen Press. A prequel spin-off manga, Kakegurui Twin, began serialization in Gangan Joker from 2015.