 Before leaving, Shim Cheong erases Joon-Jae's memories of her as the uncertainty of her return is huge, even after he disagrees with the idea and later, of everyone who knew her, except that of her friend, Yoo-na (Shin Rin-ah), an elementary school student.Three years later, Joon-jae becomes a prosecutor, Jo Nam-doo works as a lecturer, and Tae-oh, now working as a white hacker, is engaged to Cha Shi-ah (Shin Hye-sun).Shim Cheong fully recovers and returns to Seoul to meet Joon-jae.