my Tegami Bachi's manga collection!!! ^^

Alternative title: Letter Bee
Genres: adventure, supernatural
Themes: steampunk
Plot Summary: Apparently abandoned سے طرف کی his mother, orphan Lag Seeing is taken as a "letter" سے طرف کی "Letter Bee" Gauche Suede to a town where his aunt raises him. His affection and admiration for Gauche give Lag the ambition to become a Letter Bee himself, carrying mail through the dangerous wasteland between towns on his world. When he becomes a teenager, he makes the trip to the capital to take the examination to become a trainee Letter Bee. En route, he meets the strange, powerful girl-like creature Niche, who becomes his "dingo," a Letter Bee's travelling companion. Lag yearns to find his mother, and discover why she abandoned him, if she did.
Source: link