The story then jumps forward to the teenage years of the two main characters: Yoon Eun-suh (Moon Geun-young) and Yoon Joon-suh (Choi Woo-hyuk).
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A song played during emotional scenes, but excluded from the soundtrack, was "Return to Love" by Kevin Kern.
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Shin-ae (Han Chae-young) finds out about their relationship and exposes the two after she finds a love letter Eun-suh wrote to Joon-suh.
American Heart Association | Purple Heart | Heart | Sacred Heart | Heart of Darkness | Heart (band) | Heart of Midlothian F.C. | Set the Controls for the Heart of the Sun | Mostly Autumn | heart failure | British Heart Foundation | The Heart of Midlothian | Wild at Heart | The Ponder Heart | The Heart Throbs | Sacred Heart Church | Owner of a Lonely Heart | National Heart, Lung, and Blood Institute | Immaculate Heart of Mary | I Cross My Heart | heart | Crazy Heart | Autumn Sonata | Autumn | A Heart in Winter | Achy Breaky Heart | You're My Heart, You're My Soul | Total Eclipse of the Heart | The Young in Heart | The Tell-Tale Heart |