Kokoro ga Sakebitagatterunda.

The life of chatterbox Jun Naruse is infused with fairy tales and joyful conclusions. She is, however, very trusting and innocent as a result of her strong belief in those stories, and when she unintentionally uncovers her father's extramarital affair, her comments quickly sever the tie between her family members. After being held responsible for her parent's divorce, Naruse is permanently wounded, and her regrets gradually materialize into a fairy egg, a being that shuts her mouth in order to preserve everyone's happy ending. Even in high school, the fairy egg still prevents Naruse from speaking. Her gut twists even as she tries to talk. Despite her inability to express herself verbally, she surprisingly receives a role in a musical alongside Takumi Sakagami, Natsuki Nitou, and Daiki Tasaki. Naruse approaches the club room with the intention of avoiding the difficult duty, but she quickly reconsiders after hearing Sakagami's lovely singing. Perhaps Sakagami is the fairy tale prince she has been looking for her entire life, and the "curse" of the fairy egg does not apply to singing. Will Naruse be able to sing her heart's anthem?