"Care to fool around with me?" Will Akeno-san's bombshell lead to a deadly lovers' quarrel?! Issei's just started cohabiting with his beloved President Rias, so he's all "viva sexy time!" But Akeno-san has other plans when she blows his mind with a shocking proposal! Then a pair of beautiful assassins from the Church make their entrance-what will Issei do when faced with the battle over the fate of the holy swords?!