婚約破棄された研究オタク令嬢ですが、後輩から毎日求婚されています

The day after Frederika, a genius researcher of magical tools and the daughter of a marquis, is broken off from her engagement by the crown prince, she is suddenly proposed to by her junior colleague Emile. Due to the trauma of rejection, she has lost interest in people, so she turns him down, but Emile, who is like a large dog, doesn't give up and proposes to her every day... (Source: Kadokawa, translated)