Tegami Bachi

In the land of Amber Ground, where the eternal dusk never ends, a unique postal system known as the Letter Bees delivers vital messages and packages to the inhabitants. The story follows Lag Seeing, a young boy born on the Day of Flicker, 12 years ago, when the man-made sun inexplicably plummeted into darkness. Aspiring to become a Letter Bee, Lag is driven by the determination to follow in the footsteps of his idol Gauche Suede, who vanished under mysterious circumstances, and uncovers the secrets and challenges that lie within this extraordinary profession.