After rejecting an exclusive love call from the student council nice guy, gambling hotshot Mary Saotome has been attracting all sorts of unwanted attention-especially from her classmate and hater Kokoro Aiura, who tries to sabotage her every chance she gets. Can Mary beat the anti-fan at her own game and end the petty bullying once and for all?!
Thanks to their strong bond, Mary and her team overcome the coupling gamble, and the now-famous gambling star joins forces with Aoi Mibuomi. As she climbs the ranks of the wealthy institution, though, more and more challengers step up to take her seat, including Aoi's fiancée, Sakura Miharutaki, and Juraku's housepet, Mikura Sado...Will Mary be able to handle this baptism by fire?!
Yua Shishiba has already stolen the Literary Club from Mary and has her sights set on Sachiko next. But Mary isn't afraid to play dirty. Nothing, not even innocent bystanders, are safe as she tries to take down Yua's allies.
Having defeated the middle school duo, Mary begins to plot her revenge on Yua Shishiba. But Shishiba wants revenge of her own, and decides to target Sachiko Juraku...Now, these three clash in a gamble prepared by Kirari herself!
After losing her hard-earned profits to student council member Aoi Mibuomi, a penniless Mary is given a chance to take it all back on just one condition: She must team up with Aoi to oust the student council president! But in order to do so, she needs to first prove her skills in one of the academy's most popular events-the Coupling Party! Will Mary be able to use her gambling prowess to survive this dirty game of cupid?