The Bride of a HERO

My Bride is a Mermaid it's an anime were the main protagonist gets treated like shit so I thought why not replace him with someone who can fight back and then I thought why no go further and that's what this fanfic does

So sit back relax and watch as Saitama tear some shit up

Ps:They will be cursing, gore and fan Service maybe so not for kids or you just don't give a shit