Koushaku Reijou no Rouraku Mission ~Maou to no Seiryaku Kekkon ga, Jinrui Saigo no Kirifuda desu!... tte, Maou ga Onnanoko no Baai wa Dou Sureba Ii no desu ka!?~

Synopsis

Five demons launched a war against humanity, destroying more than half of its lands. Among them, the Demon King, who has killed more humans than any other, and a duke's daughter enter into a political marriage, bringing the war to a temporary ceasefire. Cecilia, the duke's daughter, sets out to win over and ensnare the Demon King, hoping to prevent the extinction of humanity. However, the Demon King is hiding a major secret...?

Alternative Titles

• ja公爵令嬢の籠絡ミッション～魔王との政略結婚が、人類最後の切り札です！…って、魔王が女の子の場合はどうすればいいのですか！？～
• enThe Duke’s Daughter's Mission to Seduce the Demon King, Humanity's Final Gambit: A Political Marriage with the Demon King! ...Hang On, But What am I Supposed to Do If the Demon King is a Girl!?