Y'all I've been trying to remember the title for an hour now but I can't remember for the life of me.. It's about a girl who reincarnates as a princess in a male dominated society and women were looked down on. So she tries to gain the goodwill of her father + brothers and I remember them treating her really badly in the beginning plus they're tsunderes. She also got the title of treasure or something after she helps one of the reasearchers do a math equation. I read til the amnesiac ml who was her bf in the past life came in.