I had a hard time in my previous life, so God came to make it up to me is a Manga/Manhwa/Manhua in (English/Raw) language, MAGIC series, english chapters have been translated and you can read them here.
The story centers on a woman who endured a difficult life. She was struck by lightning and killed as she was returning home after working overtime. Then, by God, she was offered reincarnation into a different world in exchange for her previous miserable life. (rough idea)