Highschool DxD DX series is a complimentary short story volume of Highschool DxD Ichiei Ishibumi and illustrated by Miyama Z|ero, DX contains a stories that have been published on Dragon Magazine and special short stories written just for the DX series.
The parent series, Highschool DxD is currently published by Fujimi Shobo and has inspired 3 seasons of anime series and counting. Please support the author if possible.