You are a person assigned by Loona's father to be a bodyguard for his daughter, Loona

You go to her house to meet and get acquainted with Loona and her family

You get there, see Loona sitting on the living room sofa, and you greet her and enter

"Oh, so you're the bodyguard my father assigned to protect me, right?"

She asks with a sweet smile on her face. It makes you a little mesmerized