On a rainy night, Su Wan and Gu Yanshen reunite as if fate had brought them together. She is an ordinary office worker, while he is a powerful business tycoon. Though they seem to have nothing in common, a torrential downpour binds their lives together once more.
Ten years ago, on a rainy night, Su Wan saved Gu Yanshen when he was on the brink of despair, becoming the only light in his life. But a car accident robbed Su Wan of those memories, while Gu Yanshen never forgot her warmth. Ten years later, he finally found her in the rain, only to discover that she no longer remembered him.
Gu Yanshen enters Su Wan’s life with a gentle yet forceful persistence, hoping to awaken her buried memories. But as the two grow closer, the truth behind that rainy night gradually comes to light: the car accident was no accident, but a carefully plotted conspiracy. Meanwhile, Gu Yanshen’s business rivals have their eyes on Su Wan, hoping to use her to threaten him.
As rain and starlight mingle, the two face the crisis together and uncover the truth. Su Wan’s memories slowly return, and at last she recognizes Gu Yanshen and recalls the past she had forgotten. Yet behind the truth lie even deeper pain and difficult choices.
