-30 pages, English translated
On a secret mission heading to the fortress the troops of the female knight were ambushed by a group of monsters. Faced with overwhelming strength they were powerless and so everyone died except the female knight, who was saved by a man clad in dark clothes.
However, to escape the group of monsters he needs additional magical energy and therefor the female knight needs to have sex with him.
Side Note: I like the story plot a lot…