Kirari Momobami. Ririka Momobami. Mary Saotome. Yumeko Jabami. Only four remain in the student council presidential election, and Yumeko would like nothing more than to challenge President Kirari to a true test of skill and instinct. But it's Ririka, with Mari at her side, who throws down the gauntlet against her twin sister first. Their gamble could determine the fate of not only the election but the Momobami family as well.