"I" am an ordinary woman in the 21st century who was inexplicably transported to six hundred years ago by a bolt of lightning. Six hundred years ago, I suffered a lot, but I met the love of my life. With him, hell is also heaven! So I stayed in that era with peace of mind, and became his "concubine" with peace of mind. Until one day, the wife he had been mourning for did not really die...
Intention: It was originally a whole-hearted love, but in the end it fell into competition between three wives and four concubines.