Yumeko is drawn to Momobami Kirari due to her madness. For the student council secretary, Igarashi Sayaka, this is an unbearable humiliation. Above all, the logic-driven Sayaka challenges Yumeko to a gamble. All of this is out of loyalty to Kirari. And thus, an era comes to an end at the school. The sixth volume of a story about beautiful girls and academy gambling, chasing a logic that transcends logic.