The Oppressed Magician and Noble’s Daughter Is Doted on by the “Icy Wolf Prime Minister

Sophia, the daughter of a marquis, was engaged to the second prince, Delm.
Both of them worked at the Royal Institute of Magic Research, but Delm often pushed his work onto Sophia under the guise of their engagement.
One day, Sophia invented a new type of magic, but Delm stole her research paper and registered the magic under his own name. When Sophia demanded her rights back, Delm refused and falsely accused her of lying about the theft.