Or basicly where I stalk Okada and track down every writer she's worked with
Nemoto Toshizou (6) (Venus to Mamoru, Vampire Knight, The Book of Bantorra,Black Butler II, Gosick, AKB0048)
Higuchi Tatsuto (5) (Sasami II, Toradora, Black Butler II, Hanasaku Iroha,AKB0048)
Oonishi Shinsuke (4) (Fractale, Aquarion Evol, Lupin III, Zetsuen no Tempest)
Hanada Jukki (4) (Rozen Maiden, Sasami II, Book of Bantorra, Sakurasou)
Yoshino Hiroyuki (3) (Black Butler, Fractale, Nagi No Asukara)
Koyanagi Keigo (3) (Hanasaku Iroha, zetsuen no tempest, Sakurasou)
Nishimura Junji (3) (True Tears, Hanasaku Iroha, Lupin III)
Yokotani Masahiro (3) (Toradora, Black Butler II, Aquarion evol)
Yamaguchi Hiroshi (2) (Aquarion evol, zetsuen no tempest)
Inotsume Shin`ichi (2) (Book of Bantorra, Gosick)
Morita Mayumi (2) (True Tears, Otome Youkai Zakuro)
Yamada Yuka (2) (Venus to Mamoru, Black Butler)
Waba Akiko (1) (Nagi No Asukara)
Yokote Michiko (1) (Nagi No Asukara)
Shimo Fumihiko (1) (Sakurasou)
Itou Michiko (1) (Sakurasou)
Satou Dai (1) (Lupin III)
Urahata Tatsuhiko (1) (Hanasaku Iroha)
Okazaki Junko (1) (Toradora)
Fujisaki Ayuna (1) (Vampire knight)
Was wondering if something interesting would come up but that wasn't the case
edit: actually Okada has worked with every writer who's done a series composition for a kyoani show except lucky star.
Random coincidence or will we one day get an Okada X Kyoani anime?