the half angel half demon kid

asta is a boy with no magic or so he thought when he sees his rival in trouble he has to help him out but he doesn't have a grimoire until a five leaf grimoire pops out of thin air also there will be a cross over between seven deadly sins and will be changes asta will be OP but will not mess up the story (I just got back from some health problems I got the help I needed I was going through a really bad place but I have to rewatch black clover I will go through the story fix and change a good bit good bit)