A man named Tetsuya is brought to a brothel and is slowly contorted into an Eldritch abomination by way of magic potions. He enlists the help of a worker from this brothel to assist him in quenching his desire to attain power at any cost, including his humanity. The worker's name is Hatzuki and she is constantly being mistreated by her customers at the brothel and only wishes to be with Tetsuya.