It was in a high school setting where they had a game of finding cards(¿) like king and blah blah that decided the hierarchy in the school and the bottom used to be the king(?) But then he didn't get the king in the latest game and was hence bullied. (kinda unsure of details since I didn't read yet but this is the gist of it)
So I think it had bride or palace in the name, it's modern and the fml has orange hair and male lead black hair, so the fml can see yokais ¿(not sure)in paintings cos she has some special eye and ml wants to marry a girl that has those eyes, and ml thinks fml is his first love but isn't sure and fl has lost memory of being in high school due to a car accident. Also there's a trashy ex and his sister who's family adopted fl after she got orphaned cos of car crash. The sister likes ml and she asks fl for help to help her fake that she has the special eyes