Check for characters missing birthday info here.
January
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Fuchou Sonoda
-
Haru Shirokane
-
Tenshin Ootori
February
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Kai Asahikawa
-
Shun Kamiya
March
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Yui Kamiki
-
Santarou Mita
April
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Tatsuto Tatsunuma
-
Hanafuda Sakura
May
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Kazuki Aoyama
June
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Roku Saigou
July
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Manami Daimon
August
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Rankichi Umeda
September
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Yajirobee Ueno
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Oujirou Ootori
October
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Taiga
-
Enoki Yukigaya
November
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Saori Arisugawa
-
Hyakutarou Senju
December
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Eiji Todoroki
-
Kiyoshirou Haneda