Gamble or become ahousepet! Since enrolling in Hyakkaou Academy, school life is nothing like MarySaotome envisioned it to be. In order to save her friend Tsuzura from thehousepet ranks, Mary must risk everything--even her own pride. However, afterher gambling prowess catches the eye of popular student council executive AoiMibuomi, he offers to pay off Tsuzura's debt in exchange for...Maryherself!