Anisphia, the first princess of the Kingdom of Palettia, has always loved magic, but couldn’t use it herself. So, in comes science with a bit of fantasy to help, particularly with her dream of wanting to fly. After a flying mishap, she ends up crashing her brother’s dramatic break up with his then fiancée Euphyllia, who was being lumbered with various lies as justification for the break up. Anisphia saves her from further abuse and the pair work together to restore her good name. Also it’s an isekai, but don’t worry about that, it adds nothing to the plot.