
Part of Series
A New York Times best-selling sci-fi fantasy series with heart. Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu—colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected. Lag almost breaks the record time on his Letter Bee test, securing a job as a Letter Bee! But his celebration ends with unwelcome the record holder, Gauche Suede, is no longer a Letter Bee! Shocked, Lag seeks out Gauche's little sister Sylvette to learn exactly what happened. But Sylvette has no answers, only memories and a broken heart . Gauche would never abandon his sister like that! Could it be he lost his heart ...or his life?!
Author

Hiroyuki Asada (浅田弘幸 Asada Hiroyuki) is a Japanese mangaka. His most known series are I'll and Tegami Bachi. All of Asada's manga were serialized in the monthly shōnen anthology Monthly Shōnen Jump (which has since been discontinued; Tegami Bachi now appears in its replacement Jump Square). He made his debut in 1986. He acquired a fanbase with Mint: Sleeping Rabbit, Renka by degrees, and his popularity improved with I'll. He also worked on the character design of the 2019 anime adaptation of Tezuka's classic Dororo. In his personal life, he is part of a unit with Shou Tajima (best known for Psych) and Takeshi Obata (best known for Hikaru no Go and Death Note), and his creation activity with "AQUARIOS 3".