Hello! I need help!!! I’m trying to remember the name of a series with a Female MC with ...

Hello! I need help!!! I’m trying to remember the name of a series with a Female MC with pink hair and a nice art style, she was transported into a game she plays that is extremely pay2win (and she was LOADED) she has her own kingdom but she has to attend the Academy if she wants to prevent the Calamity (the demon lord I think?) the MC then slowly recruits a following to help potentially defeat said demon lord (she attempted to be nice to him at first but thought it’d be best to start up a backup plan because he was kinda a jerk)