Cui Qingyi is reborn back to her age of sixteen, wanting only to avoid the Zheng family who tormented her through half of her past life, playing the fool and acting submissive, determined to be a lazy slacker. By an accident, she rescues the water-fallen Prince Liang, Li Chengjing. Prince Liang is the emperor's youngest younger brother and the empress dowager's apple of her eye, yet also acknowledged as the number one spendthrift. Yet, this spendthrift would stuff his private money into the secret compartment of her makeup box sent to her as their marriage date approaches, would reveal his identity to shield her in front of her when caught climbing a wall, and would fool around in front of people while keeping every single word of hers in his heart behind her back. Having forged through her past life the skills of an aristocratic inner courtyard, this life she only wants to protect her own little life, while incidentally protecting that foolish prince who always loves to present treasures before her.