Reborn: The Legitimate Daughter Is Poisonous

Looking for Quick Transmigration Stories, I Forgot the Title

I once read a novel that seemed to be a quick transmigration story. In the first arc, the original host's family went bankrupt while she was in high school. The male lead found the original host and asked her to be with him, promising to support her through school. After the original host went abroad for university, she planned to break up with him and also had an ambiguous relationship with someone else.