Throughout her life, Tsubomi Kido has been confined to a garden within her mind, gazing into a mirror and experiencing nothing but self-loathing. Even when she attempts to speak, no sound emerges—her words unheard, much like a tree falling in an empty forest. Whenever faced with overwhelming problems, Kido has consistently hidden her face and run away. Yet, with the backing of her friends, she may at last be able to let her voice be heard and escape the burden of her past.