Become Their Wicked Yet Gentle Lord

This is both a chaotic battlefield of a teenage harem and the remnants of a millennium-long "Heretical War." Transmigrating to a Western fantasy world, Ryuka awakens the "Proof of Leadership," increasing his strength by cultivating followers, gradually binding his abilities and destinies to those of the girls. His wicked little lover is a descendant of an ancient witch, whose ability to grow stronger through indulgence is copied by Ryuka… Farming and development isn't bad, but a savage conquest seems to offer even more possibilities? A girl secretly in love fuses with a heretical demonic sword, initiating a reverse invasion of the heretical continent… Slaying heretics is my duty, but why are strange races crawling into my bed? The empire's princess's appreciation and approval, a world fragmented by warlords awaiting unification… Finally, something serious! What kind of lord doesn't build and expand? Reform, develop, and expand! But, if he doesn't lift the witch's curse, she will die, and the method 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.