Sim Haneul is very known to be the stubborn only child of Sim Hanmin, a business man and Ha Jiwon, a very known actress who chose to leave everything behind so she can have a life with her businessman husband in Australia. But after Haneul's mom passed away due to cancer, being a single dad, Hanmin became strict on rearing his child. But as she grows up, she felt like she's choking on her father's strictness so she pushed her rich that made her dad furious. Hanmin cut off every single cards and sources of money that Haneul has to teach her a lesson but it was him who learned something from and about Haneul, her own daughter.