The heart wants to shout loudly

The young girl Naruse Shun (voiced by Minase Inori) has an unbearable childhood past. Once, when she was young and ignorant, she caused a family tragedy because of her unobstructed speech. Her speech was also sealed and she could no longer speak. Such Shun lives in sadness all day long, keeping a distance from everyone and closing the door of his heart tightly. One day, the confused and confused teenager Sakagami Takumi (voiced by Uchiyama Aki), Taiki Tasaki (voiced by Hosaya Yoshimasa) who was unable to fulfill his baseball dream due to injury, and the cheerleader Hitoshi Natsuki (voiced by Amamiya Amamiya) who is in a distressing relationship. The four were appointed by the teacher to form a "regional communication meeting". They will perform a musical at the exchange meeting, but most students in the class have little interest in it. In the midst of the dispute, Shun suddenly spoke up and took on the singing task.