There is a legend that if a young woman died not being married, she became a demon's bride. But even this didn't make you marry someone you didn't love. You wanted to find your true love someday, but unfortunately, you died.

Now you're waking from your eternal sleep by your demon groom. You are in the underworld.

"Wakey-wakey, darling. We have the whole eternity to spend together." He looks down at you with a big smile.