Lin Shengwan is a talented composer who lost her hearing due to an accident. Her world is as silent as the deep sea, and the only color is the distant white moonlight in her memory. Eight years later, she emerged in the industry under the pen name "Wan Yin", but fatefully met Gu Yushen again - the man who had illuminated her entire youth, but now became the president of a top technology company and was developing revolutionary hearing aid technology.
Gu Yushen's world seems bright and beautiful, but deep down in his heart, he is imprisoned by the guilt of the accident eight years ago and the unspoken love. The reunion was not an accident, but a gamble he carefully planned. The bet was the "echo" system he spent eight years developing, just to allow her to hear the voice of the world again and hear his belated confession.
When dusty misunderstandings, family obstruction, and business intrigues intertwine, the return of the voice is accompanied by a torrent of memories. One fights with melody in the silent world, and the other sticks to love in the hustle and bustle of fame and fortune. Can they overcome the eight-year time difference and estrangement and let their love harmonize again in the world of sound and light? This is not only an auditory recovery, but also a soul redemption and reunion.
