Read Lust Geass Manga:
Takatsuki Souta is in love with his childhood friend Amanome Rikka but he has a problem; because of their parents’ upbringing, their relationship is viewed more like siblings. So whats going to happen when he obtains the power of “Geass” through a mysterious book which awaken desires in people around him?
Will Lelouch seize this Geass? Or will Souta become the next emperor using this power more.. ?