Drop!! Kaori no Reijou Monogatari

When she wandered the border of life and death at the age of three, Cordelia realized that she had been reincarnated into a game she had used to play as a high-handed noble girl. A dark future would await her if she fell in love with the Prince. Therefore, for the sake of a normal life, there was no road but to avoid the powerful prince and the heroine... But just doing that would be boring. She finally was blessed with a beautiful appearance so she resolved to polish herself, firstly by beginning to study herbology... This is that kind of story. (Source: Mojotranslations)