I Became a Childhood Friend of the Obsessive Sub Male Lead

Princess Rietta Lise was born into royalty as the next heir to the throne of the Kingdom of Lise, yet she carries a secret burden: she retains the memories of her past life and recognizes her reality as the setting of the novel How to Survive as an Ordinary Lady. Despite her royal status, her fate takes a cruel turn when her father—a self-indulgent king devoted entirely to luxury and pleasure—callously sells her off to the empire. Stripped of her standing, she is sent to reside within the walls of the ducal Mayer estate, forced to navigate an unfamiliar life far from the crown she was meant to inherit. It is within this grand dukedom that Rietta makes a startling discovery. Noel, the second son of the duke, is none other than the sub-male lead from the very novel she remembers. Armed with her knowledge of the story's original plot, she resolves to change his destiny. Determined to repay the Mayer family for their kindness in taking her in, Rietta sets out on a bold mission to elevate Noel from a secondary character into the true male protagonist of the tale.