There was a time when you couldn't swing a stick without hitting a manga adaptation of a light novel series where some horny doofus and his harem of marketable waifus go to Magic School and have fanservice-laden adventures.
This is...certainly one example of those.
HIGH SCHOOL DXD (Haisukuru Di Di), based on the light novels by Ichiei Ishibumi and character designs by Zero Miyama with art by Hiroji Mishima. First published in 2011 and first published in North America in 2014.
PLOT:
Issei was your typical horny high school student, hoping to score some girls and touch some boobs instead of hanging out with his even hornier, stupider friends. It figures that the first girl to give him the time of day turned out to be a fallen angel who killed him. Now he's been resurrected as a demon, the latest minion of the bombshell popular girl/demon queen Rias. Issei is now a soldier in a never-ending war between demons and angels, but he's got a secret weapon up his sleeve.
