Based on the erotic game by Black Lilith.<br> <br> Kyle, the protagonist of this story, is one of the 7 heroes who defeated the evil overlord. After that battle he starts a conquest of the continent in order to unite the humans who live on it.<br> Standing against Kyle is only his younger brother Syll, who is also one of the seven heroes. Kyle stole his throne, but failed to kill him.<br> One day, another of the 7 heroes appears before Kyle. She is Nina, an elven princess. Kyle knows that Nina and Syll are lovers, and a dark desire begins to burn inside of him...<br> <br> (Source: DLsite English)