Yu Qing and Ye Luo were childhood sweethearts. Although they had never met, they seemed to have known each other for the first time. No matter how time took them to the ends of the world, they never lost contact. No matter where they were, there was always a trace of concern in their hearts. For him (her), they refused countless confessions and suffered countless doubts, but they had no distracting thoughts and never forgot each other.