Tegami Bachi – Letter Bee REVERSE

Second season of Tegami Bachi: Letter Bee. Lag Seeing is a young by born on The Day of Flicker, when the man-made sun inexplicably vanished. His ambition is to be a Letter Bee, couriers that deliver mail throughout Amber Ground, and follow in the footsteps of the dissapeared Gauche, a precious friend from his early childhood.