A brief encounter in youth leaves a lingering trace of fondness in Xie Huai's heart. After graduation, the two set off on their respective life journeys, and a flash of time spans ten years. Meeting again by chance after many years, the deep feelings hidden in the past slowly awaken. In day-to-day companionship and mutual understanding, Song Nuan comes to understand Xie Huai's sincere and ardent heart, untangles past regrets, and guards each other, fulfilling a warm and healing beautiful romance.