I remember when the KanojoKanojo anime was announced, about 7 months after the manga started, it also had 2 volumes out (the 3rd came out the next day).
And that's by no means the first or fastest.
The Yumeiro Patissiere aired just a year after the 1st chapter, and it was a full-length 50 episodes anime (KanoKano took 16 months in comparison).
And that's by no means the first or fastest.
The Yumeiro Patissiere aired just a year after the 1st chapter, and it was a full-length 50 episodes anime (KanoKano took 16 months in comparison).
Tho, I guess things were different in 2009