Hyun-Ah and Ye Sung were very close in their childhood year, best friend even. But as they get older, and Hyun-Ah moves to another country they find their relationship fading. Now, years later when both Ye Sung and Hyun-Ah hit their teenage years, Ye Sung pays a visit to her in Scotland where she'd currently living. Now known as 'Joanna' or 'Jo', Hyun-Ah has changed a lot. Will the time they're able to spend together recover their old ways? Or will the changes be too much to take in?