Check for characters missing birthday info here.
January
-
Makoto Sawatari
-
Ayu Tsukimiya
-
Mai Kawasumi
February
-
Shiori Misaka
March
-
Kaori Misaka
April
-
Jun Kitagawa
May
-
Sayuri Kurata
September
-
Akiko Minase
December
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Mishio Amano
-
Mishio Amano
-
Nayuki Minase