Harapeko Reijou, Level Up Shokudou Hajimemashita: Ukkari Nuita Houchou ga Seiken Deshita!?

Lara Rose, a useless, impoverished baroness with a "hungry" skill, gets kicked out of her job after slapping a perverted marquis. But then, she accidentally pulls out.. not a kitchen knife, but a holy sword?! (Source: Kadokawa, translated)