Oujo denka wa Nazo no Hyouhen Shuuchaku Ouji ni Haramase-rareru

In the land of Davona, divided into East and West, Ledia, the daughter of the royal family in the West, suddenly loses consciousness and wakes up in a prison. Standing before her is Aulio, the lord of the enemy East country.. "I will imprison you here for the rest of your life." "I must impregnate you quickly and surely." Ledia is given an aphrodisiac and becomes unable to resist Aulio's procreative sex.. What is Aulio's true objective..?