Rakuin Hime Runed Princess

Teach those damn elf lasses a lesson! The sinister sex magic that the glorious human race can cast! In ancient times, a band of three managed to seal an evil god. This group consisted of a heroic human, a high elf and a dark elf. After they had sealed the evil god for good, they each founded their own realms and the world experienced peace for thousands of years. Ever since, high elves and dark elves have been protecting the site where the evil god is sealed and thus contributed to the proliferation of the world's peaceful times. But the human realm did not particularly contribute to keeping the seal in place, so they watched it degrade. The protagonist,a descendant of the hero, has a change of mind: "Why do we simply watch the seal degrade?" In current days, human technology, our magic and magical power has progressed far enough to surpass those of the elves. In fact, we should even be able to put the evil god and his army of hellspawn under our control by now! I'm gonna tame those elves who had been mocking me and show them the supremacy of the human race!