Lucas, who was reincarnated without his memories as a half-beast in a world of magic and swords, finds himself in crisis with his new identity. Born into a family with a loving mother, a twin sister who is strangely overprotective and attached and unbeknownst to his father, he doesn't know what to do. Follow him as he accepts his new identity, adapts to his new world, and is corrupted along with his loving family into a forbidden but pleasurable world - incest. --- *** This is a femdom hard story with no harem, you have been warned ***