Sengoku Rance is all about the most perverted hero of a fantastical world. He journeyed to Japan in order to have his way with the ladies of this land, and ended up as the secret ruler of Nobunaga House. In the process of conquering Japan, he unwittingly play the dupe for an ancient demon sealed in this land just waiting to be freed. Nevertheless, be it either demons or hostile forces, none shall stand between Rance and his ladies.