18+ As Written In the Lewd Notebook

One day, I found a notebook that could make any lewd wish written in it come true. After his father's death, Eun-ho begins living with his stepmother and two younger stepsisters—people he has never met. Amidst the awkward and strange daily life awaiting him, he stumbles upon a mysterious notebook. "This notebook will grant me any wish... even the most lewd ones?"