Your Majesty, Please Don't Kill Me Again is a Manga/Manhwa/Manhua in english language, Drama 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

It was the end of a sunny summer day. In the hands of the tyrant, father, mother, brother and my neck went under the guillotine. And when I opened my eyes, it was my 12th birthday. Before the 13-year-old young Emperor became a brutal tyrant, I had to somehow become a god next to the man. "I'm your maid of honor, so I'll follow you." "I don't have much. And I don't own you."
To live and to save my family, I have to be in the eyes of that tyrant who didn't believe in humanity.
Only then I can live.
But that horrible monster is starting to change.
"I save what I lose in my hands. So don't hurt yourself without my permission."