This Feeling Lingers as a Memory

This Feeling Lingers as a Memory Plot:

Ten years ago, he left without a word due to a misunderstanding, and she waited in vain, only to receive a farewell letter. A decade later, he returns as a business tycoon, while she has become a career elite. An unexpected collaboration brings them together again, with unresolved old feelings entangled in new conflicts of interest and emotional tension. As the truth gradually unfolds, they discover that their separation hid a profound secret and sacrifice. Will they rekindle their love or part ways forever? This decade-spanning romance builds toward an unforgettable resolution.