Kokoro ga Sakebitagatterun da.

A girl named Jun is unable to speak due to a magical seal placed on her words. Her inability to talk stems from a past event in which something she said as a child caused her family to break apart. An egg fairy intervened by silencing her to prevent further harm. Since then, Jun has avoided attention and lived quietly. Unexpectedly, she is chosen as an executive member of a community outreach council and assigned the leading role in their musical production.