Kakegurui Twin Vol. 3 (manga)

Thanks to their strong bond, Mary and her team overcome the coupling gamble, and the now-famous gambling star joins forces with Aoi Mibuomi. But as she climbs the ranks of the wealthy institution, more and more begin to challenge her seat, including Aoi's fiancé, Sakura Miharutaki and Juraku's housepet, Mikura Sado...Will Mary be able to handle this baptism by fire?!