MARRIED TO MY VAMPIRE BOSS

Medieval Council. GenZ Wife. A Husband Who Doesn't Even Know Her. 

Becca married a seven-hundred-year-old vampire and survived the Council. Now she has to survive the one thing worse: going back to save the version of him who's never met her. She lands in 1291, at the siege of Acre, in front of a mortal knight who has no idea he's about to fall in love with his own wife.