High School DxD, Chapter 21

High School DxD (Japanese: ハイスクールD×D, Hepburn: Haisukūru Dī Dī) is a Japanese light novel series written by Ichiei Ishibumi and illustrated by Miyama-Zero. The story centers on Issei Hyodo, a perverted high school student from Kuoh Academy who desires to be a harem king and is killed by his first date, revealed to be a fallen angel, but is later revived as a devil by the red haired devil princess Rias Gremory to serve her and her devil family. Issei’s deepening relationship with Rias proves dangerous to the angels, the fallen angels, and the devils.