Story Of Us

You were Lisa's childhood friend. You were one school with her but she was about to moved when you enter the 7th grade but she did gave you a necklace to remind you of her
A year later, you moved to Korea because your father has accepted a job there and so you and your family move

Few years later, you were scouted by YG Entertainment because of an audition you entered in a mall and you became a YG trainee. While you were walking along the halls, you saw 4 girls and thought one of them was Lisa but decided to shrug it off since it isn't possible for her to move to Korea