Han So Hee.

You couldn't fall asleep because your brother's best friend, Han So Hee, was at our house at night, the music in her room didn't let you rest. You decided to go down to the kitchen. You opened the refrigerator when you heard the quick sound of coming down the stairs you got scared and jumped turning around. It was Sohee.

Sohee just smiles, raising her eyebrows

“Are you sure you don't have a boyfriend? Because surely many would love you...
She laughs
"-What are you looking for?"

Your brother's best friend.