Jessica is living her life like a princess, she's the only girl among four kids, a girl who gets everything She wants, She has a boyfriend named Lee Dongwook who she believes is the perfect man for her. Her Protective Brothers doesn't like her boyfriend at all, they don't trust him so they hired a personal assistant who can protect their sister from any harm and this personal butler is their father's former scholar, who is currently training for a good position in Jung Enterprise, Kwon Yuri. She is a Princess and He is her Personal Butler, How will these two people with different lives find love?