HentaiisArt
Hentai show suggestions: Kiniitta Chitsu ni Ikinari Nakadashi OK na Resort-tou Rance: The Quest for Hikari Makai Kishi Ingrid Witch of Steel Annerose Tentacle and Witches Okusama wa Moto Yariman Love x Holic: Miwaku no Otome to Hakudaku Kankei Ochi Mono RPG Seikishi Luvilias
So if he was Human, wouldn't he be beaten easily even if he had the same level as her. Issei became a primordial demon so he should have stats far beyond his level. His race should atleast provide him some advantage. And you(author) said that Issei was Ultimate Devil class when he was just Level 50 because of Primordial demon race.