In the Lust Legacy game, heavily focused on incestuous relationships between family members (mom, sisters, aunt), MC's life experienced a profound shift after the passing of his father. His mother and sisters have transformed, and MC continues to be haunted by nightmares about these changes. One day, he uncovers from a video left by his father that someone was actively seeking him. A business venture had soured, leading to a plot to eliminate him from the competition. This strongly suggests that his father's demise wasn't accidental; it was a case of murder. Astonishingly, within the same video, he learns that his father was not merely an ordinary individual but a legendary figure in the adult entertainment industry, working as both a porn actor and producer. Now, he is tasked with ensuring the welfare of his family and delving into the investigation of his father's death, all the while gradually establishing his presence in his porn empire.