I recommend 'My Daddy Is Tsundere.' This was a modern romance novel about a wealthy family. It was also similar to a novel about a genius son and a two-faced father. The main character was a female protagonist known as a "top-notch assassin." Her son ran around in the underworld and was forced to become an apprentice by a black-bellied male protagonist. It began a helpless story of a mother and son surviving in the underworld. I hope you like this fairy's recommendation. Muah ~😗