One Punch...? What? ( Meliodas x Reader )

A lady of unknown origin seems to have passed out in front of the Boar Hat Tavern. This feels like Deja Vu for Elizabeth, Meliodas and Hawk. She later claims that she is a...hero for fun? Was there ever such an occupation? A triangle-love will (un)fortunately form in this story, but who will win his heart? A girl who...