Devilish General Imprisoned

In the heat of the great battle between humans and demons captured by our hero gets one of the General of the Army of Demons. The General has a pretty girl Nehru from the Eastern front. The hero receives a special task from the headquarters, the purpose of which is to enslave the mind and body of the General with a strategically important goal - to psychologically break the enemy. Can a simple man break the will of one of the strongest demoness and turn it into an ordinary sex doll?