Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School
What is Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School about (plot, summary)
A normal, struggling high school boy gets swept up in a kidnapping plot involving a billionaire's daughter. He is subsequently hired as her live-in caretaker. While she must project the image of a flawless, brilliant student at school, he must secretly manage her completely hopeless daily life at home.