High School DxD manga volume 5 features story by Ichiei Ishibumi and art by Hiroji Mishima.

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?!