I Became a Childhood Friend of the Obsessive Sub Male Lead

Born with memories of the novel How to Survive as an Ordinary Lady, Princess Rietta Lise is next in line for the throne of the Kingdom of Lise. But after being sold to the empire by her father, a king who lives in luxury and pleasure, she enters the ducal Mayer estate. Upon realizing that Noel, the duke's second son, is the sub-male lead of the novel, she'll try to repay the dukedom's favor by making him the real male protagonist! (Source: Tapas Media)