She is the Jiuyou Emperor Ji who killed her brother and father, and he is the enemy hostage she picked up.
She granted him the right to kneel at her feet, which was the only mercy she ever gave him.
Before she died, she said: Kneel down and wait.
He took it seriously.
Seven hundred years, seven reincarnations. She was reduced from a princess to a concubine, and he was reduced from a hostage to a first-in-command.
Seven mausoleum guarding nails were driven into the kneecaps, and his black hair was covered with snow on his knees.
She was reborn for the seventh time and asked him: Who are you?
He said: You had a dog.
