High School DXD

Issei is killed by the one he thought was his girlfriend. He is resurrected thanks to Rias, who makes him her servant. She is the president of a club that is none other than a satanic community. Issei then discovers that the world is populated by demons and fallen angels. His killer is one of them, in fact. If he was killed, it is because he possesses a gift that prevents fallen angels from manipulating humans. Demons are subject to a hierarchy and rules, so Issei will have to work hard to climb the social ladder and obtain the right to have his own servants (or rather, in his case, a harem). He soon meets the alluring Asia Argento, with whom he will form an unusual duo like Romeo and Juliet.