Become their wicked yet gentle lord.

This is both a chaotic battlefield of a teenage harem and the aftermath of a thousand-year-old "war of heretics" that has raged for centuries.
Traveling to a Western fantasy world, Liu Xia awakens the [Proof of Leadership]. By cultivating followers, she can increase her strength and gradually become bound to the abilities and destinies of the girls.
The wicked little lover is a descendant of an ancient witch, whose ability to become stronger through indulgence was copied by Ryuka... There's nothing wrong with farming and building up, but a lewd romance seems to offer more possibilities?
The story begins with a girl who has fallen in love with a heretical demonic sword, embarking on a reverse invasion of the heretical continent... It is my duty to fight heretics, but why did a strange race crawl into my bed?
The empire's princess has gained appreciation and recognition, and the world, fragmented by warlords, is eagerly awaiting unification... Finally, something serious is happening. What kind of lord doesn't focus on building and expanding? Reforms will revitalize the nation and drive its development.
However, the witch will die if her curse is not lifted, and the solution is to overthrow the princess's empire. Conflict between the heretical girls and the holy knights is inevitable.
[Without making a choice, he wants it all, controlling both the harem and the front yard], both to satisfy his own ambition and for the fate of the girls, the boy will eventually become their lord, the emperor above all kings.