Heian Era is known as the Golden Age of Japan as well as the Golden Age for Jujutsu. The date is 795 AD and the Japanese have vastly developed the ideas of art, architecture, literature, and rituals of their cultures. This was the time Ryomen Sukuna came into power and gained the title as "King of Curses" as well as the strongest sorcerer of his time. As the new King, Sukuna rules the country with an iron fist. He demands only perfection and within the chaos he meets (y/n) who took as another worker for his temple. But as time goes, Sukuna starts to show some type of interest in them and before he knows it, he has fallen for them. (English is not my first language, I have not done much research on Japanese history and Sukuna may act ooc in some parts)