Haibane of Old Home by ABE Yoshitoshi Original Doujin — Completed

Also known as Haibane Renmei

Old%20home%20no%20haibane%20tachi%20-%201%20-%2001

"The series follows a young girl named Rakka, a newly arrived haibane (an angelic-looking being), and other characters in the city of Glie (guri), a walled city with one entrance where no one is allowed to leave. (See http://en.wikipedia.org/wiki/Haibane_Renmei for more.)" -Manga Updates

Chapter 0, "Charcoal Feather Federation" was the original installment of the Haibane Renmei series, though it is mostly unrelated to the following chapters.

Chapter 0: Charcoal Feather Federation released Jan 27 '03
Chapter 1 released Jan 26 '03
Chapter 2 released Jan 27 '03
Chapter 2.5: Haibane Lifestyle Diary released Dec 22 '06
Chapter 3 released Dec 22 '06
Anime Artbook: In the Town of Glie, In the Garden of Haibane released Feb 1 '03 Art book