Tegami Bachi: Hikari to Ao no Gensou Yawa
In the land Amberground where the night never ends Lag Seeing is a letter bee living to deliver letters and packages. To protect him from dangerous creatures known as Gaichuu he travels with a girl Niche and her dingo Steak. Lag gets a special delivery job to a former letter bee Elena Bram. To guide him on this special job, he gets an extra dingo, Darwin which was also Elena Brams dingo. On his way to deliver he meets a Gaichuu which Elena also fought.