High School DxD, Vol. 5 (light novel) by Ichiei Ishibumi
Ah, summer. The season to bask in the beauty of swimsuits at the pool or the beach.
At least, thats what Isseis hoping for when he tags along with Rias on her trip home
to the underworld. However, what awaits him isnt half-naked babes, but a hellish
training regimen concocted by Azazel, the fallen angel teacher!
At least, thats what Isseis hoping for when he tags along with Rias on her trip home
to the underworld. However, what awaits him isnt half-naked babes, but a hellish
training regimen concocted by Azazel, the fallen angel teacher!