Hyakkaou Private Academy. An institution for the privileged with a very peculiar curriculum. You see, when you're the sons and daughters of the wealthiest of the wealthy, it's not athletic prowess or book smarts that keep you ahead. It's reading your opponent, the art of the deal. What better way to hone those skills than with a rigorous curriculum of gambling? At Hyakkaou Private Academy, the winners live like kings, and the losers are put through the wringer. But when Yumeko Jabami enrols, she's gonna teach these kids what a high roller really looks like!

Akari is a first grade high school student. She is positive, realistic and outgoing with romance. Akari though is not good at expressing her feelings. She become friends with Yuna, who attends the same high school. Yuna has a hard time talking with strangers and she is passive with romance. She has never been in love, but she dreams of having a romance like those drawn in manga. Even though Akari and Yuna have totally different personalities, they are now good friends. Yuna gets attracted to Rio who is Akari’s stepbrother and attends the same high school. Akari becomes attracted to Kazuomi, who is Yuna’s childhood friend and attends the same high school.