I Was Just An Ordinary Lady is a Manga/Manhwa/Manhua in english language, Fantasy series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

A sassy prospective college student, Kim Hansol, meets her end due to an unlucky accident. She gets reincarnated as a beloved lady in a family of heroes in a world with magic, spirits, and dragons. “I’m going to return to my original world no matter what!” But while struggling to return to her Korea, she loses control of her magic and ends up causing a catastrophe. Yet her family loved her regardless, and moved by that, Kim Hansol acknowledges her reality and begins to live as Finnea of McKaira, one of the five legendary houses in her new world.