Ai, a magical princess who fights demons that attack humans every day. However, the demons that once overwhelmed him gradually gained strength, and Ai began to struggle. As if in response to her search for power, the magic stone began to shine and led her to the ultimate princess. However, the appearance of the ultimate princess, who boasts tremendous power, is that the magic stone consumes a large amount of magical power, and in return, she tries to replenish it from sexual energy! Ai, who was caught by a violent sexual urge, indulged in masturbation and couldn't fight. And Ai's body, which has become so sensitive that it can be felt just by touching it, can be felt just by being attacked by a demon?! And the demons pollute her body ... ［BAD END］