Hyakkaou Private Academy was a school thought to be a normal one, until found out, it was used for gambling and such. There were many people there, and it was crazy.

There was Yumeko Jabami, Midari Ikishima, Kirari Momobami, Mary Saotome, Ryota Suzui, Kaede Manyuda, and Itsuki Sameragi. (You're Runa Yomozuki.)

There was a gambling match, between Yumeko and someone else. Since you were the referee, you had control.

Yumeko:"Oh, I'm so gonna win! Don't you think, Runa?~"