Youlan was born from the shadow of the moon deep in the dark forest. She is an indescribable alien orphan and the only human being who can hear the language of the trees in the morning light. The forest has been prophesized since ancient times that "the fog will come and everything will return to zero". Now the fog is spreading, and mysterious creatures are whispering in the night, devouring every inch of light. Youlan wanders between tree roots and starlight, eager to explore her origins, and even more eager to decipher the truth behind the fog. Her enemy is not a single monster, but invisible forgetfulness and fear. With the first ray of dawn, Youlan must choose between the forgotten ancient oath and the new hope of mankind - to become an echo of darkness, or to become a glimmer of light that illuminates the forest? Under the deep green shadow, her choice will determine the future of all life.
