The military state of Veldgrado was known for its highly elite order of knights. Using this overwhelming power, they cooperated with other surrounding countries, to combat the evil forces of demons who aimed to rule humanity. Cecilia had proven her prowess with a blade in countless battles, and while continuing to fight on the front lines, she also helped train new recruits, and was respected among the ranks of knights. One day, the knight's stronghold was attacked by demon forces. Cecilia and her band of knights defeated the demons. However, the top succubus Lust had placed a powerful curse on the men in the knighting ranks. This curse greatly increased their sexual appetite, and the demons fed off this lust. With the demons growing stronger, Cecilia's division began suffering loses. To save her subordinates, and stop the advance of the demons, Cecilia decides to help relieve the men of their sexual urges...