Tensei shita no de Maou Heika wo Ecchi na Milk de Sukuimasu

A land of darkness dominated by the Demon King who has ruled for 100 years. I was reincarnated as the queen of such a country. And the days of humiliation from the Demon King Licht. I have no choice but to run away!? But beyond that hardship, there was something that only I could do!