Its about a boy that one day, wakes up as a big breasted woman. S/he has to deal with a pervert friend, new clothes and a mother that prefers him as a girl.
Note: The Author and Artist list just consists of the Authors, though they double up as the artists anyway. Very Long list of authors and couldn't fit them all in the correct section. Author/Artist continued: Ruuen Rouga, Ishida Akira. An anthology of genderbending and cross-dressing. For a very detailed summary, see Manga Updates.