Lelouch of the Chousin Experiment

Seven years after being sent away to Japan for his own protection along with his sister, Lelouch a prince of Britannia has been living under the protection of both the Ashford Family and the Masaki Family under a new name. But when curiosity gets the better of one of his friends they end up triggering the start of events that will change everything. Lelouch/harem, Tenchi/harem