
A young man aimlessly wanders a bustling town at the foot of an endless sea of trees — a vastness that seems to match the looming waves of emptiness in his memory. With only his name to guide him, Adol Christin has no choice but to search the town of Casnan for clues to his identity and any light to shine into the blackness of his past. A thief who claims to have known him joins his ranks, and together they help rescue doomed miners from a collapse — an act of bravery that catches the eye of the Romun Army general in town. Perhaps this pair may succeed where others have failed, so they are enlisted to explore the infinite sea of trees and map the expanses of Celceta — a task from which no others have returned alive. As he struggles to regain his memories, alone in this strange, uncharted and seemingly endless frontier, Adol must decide whom he can trust and whose motives lay only in deception.