beta
Mc is a reincarnated girl in the body of a villainess that is supposed to be a mage from a mage family but she can't use her magic at all, she got her engagement broken with the prince I think And her father got her a date with a Duke with black hair who becomes our ML
She's trying to solve her magical amnesia
Duke is super in love with her
She got a brother
Saintess is actually meddling with black magic demons etc