A female college student has a smile like a flower, a school belle-level appearance, and an endless stream of suitors. However, she falls in love with a boy who comes from a modest family and has a unique temperament. The boy is talented and academically successful. The two of them vowed to be in love with each other sincerely. Promise the future. But in the end they were washed away by the torrent of graduation season, and they were separated in the end. A year goes by in a hurry. She turned around brilliantly and had a successful career. She was radiant. Boys are still wandering around the world, facing ups and downs on the road to pursuing their dreams; fate is unpredictable, and they met at a chance gathering. Surprise flashed in her eyes at this encounter, and there was even more imperceptible pity; he forced a smile to hide the mixed feelings in his heart. The return of old love is mixed with the bitterness of reality. Her world is bright and beautiful, but his is in turmoil. The two hearts are so close, but they seem to be separated by thousands of rivers and mountains. Emotional entanglements are like lights in the night, flickering and extinguishing, reflecting a period of unspeakable regret and reluctance.