Women Although she is a research otaku daughter whose engagement has been broken, she is asked to marry by her juniors every day (1) / nenono Kadokawa Beans Library

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Frederika, the daughter of a Marquis who is a genius demon tool researcher, was asked to marry Emile, her junior in the lab, the day after her engagement to the crown prince was broken. She refuses Frederika, who is only interested in magic tools, but she does not give up Emile like Wanko. We gradually get to know each other, but it seems that my father and Emile are connected, and they are also involved in breaking the engagement? "My 『 loving 』 is even more ugly." The friendly dog junior was a fierce Yander beyond the simple one? The dark type of drowning love with demon tools opens!