Five demons declared war on humanity, destroying over half the continent. To bring about a temporary ceasefire, a political marriage was arranged between the Demon King, who had killed the most humans, and the daughter of a duke.
Humanity’s plan was to send in the duke’s daughter, along with other personnel, to win over and seduce the Demon King, thereby preventing mankind’s extinction. However, as the duke’s daughter conversed with the Demon King, she found it impossible to believe that this person was the kind of malevolent being who would slaughter humans.
Just as she confirmed the Demon King’s inherent goodness and discovered that they had been brainwashed by someone into committing mass genocide, the duke’s daughter was killed—only to be brought back to life as time rewound.
She has six chances left. Relying on this power to return from death, she must use a honey trap to uncover the mastermind controlling the Demon King. This is a story about saving humanity, and the Demon King herself.
With a title like that of course the native language was japanese!