Good evening everyone

Some months ago i was reading some webcomic (i think it was one but I'm not so sure any more). I lost my bookmarks in an hazardous windows updating, so i was thinking you may put a name on this one.

Genre : Fantasy / Comedy / Action
Full coloured

All that i remember is that the MC was a total prick
He was the pupil / lover of the red dragon and stole her horn while she was sleeping in order to slice it and make money

I'm not so sure any more but I think the story turns around the black dragon forced to do things he/she hates, turning insane and wanting to die even it means to bring apocalypse on the world.

Thanks for your answers/reading me

It's 4 Cut Hero.