Not saying that he wasn't an outcast, however the reason for his social ineptness was his sincerity. Obviously that's not what succubi want, they just want to suck off all of your vital energy either through constant nagging or through just being total bitches. If you don't play their game you're nothing to them and that's the sad reality of the modern world.
I agree on the hERo part, he had a lot of courage to do what he did though I would have loved if he didn't kill fellow brocels. Like the two ricecels living with him in his apartment. Just google a picture of them, they were the most stereotypical ricecels. He didn't walk on water though and his actions are more important than his persona.