Simmi's activites

The story was that the fmc transmigrates as a character in a novel with a system and tries to stop the ogfl from coming back from abroad and also aiims for all characters happiness. It's set in high school and the ogfl's twin is the reason, she is bullied I think that is why the ogfl returns. I think in the profile pic of the manga the girl is holding a phone in her hand. Can someone guess what I am looking for?

I reincarnated into the "Villainess Eumiella" from an RPG Otome game. In the main story, Eumielle'as...