Yu Luxi, an optimistic and energetic girl, works hard to become a voice actor as her ultimate dream in life. She unexpectedly discovers that her boss Lin Nan is actually the voice actor idol Mai Da whom she has admired for many years. Yu Luxi worships Lin Nan as her teacher, and the two go hand in hand and travel together in the world of sound. As Yu Luxi continues to make progress, she gradually discovers Lin Nan's unknown secrets. The two open their hearts and become closer. When Yu Luxi succeeds and has love and career, her father's Alzheimer's disease hits her hard. She uses her voice to gain love and also uses her voice to recall the memory of her family.