Synopsis：The deaf Xiao Ma and his daughter Mu Mu are each other's companions. The young but mature Mu Mu is the "pillar" of the family, communicating with the outside world for her father and helping him make a living. However, as Mu Mu grows up, she must integrate into the hearing world, and the inseparable life of the two is about to be broken. An accident not only makes Xiao Ma regretful but also makes Mu Mu secretly make a surprising decision...