Check for characters missing birthday info here.
January
-
Masamune Toya
February
-
Akito Shukuri
-
Senri Ichinose
April
-
Nanami Shiranui
June
-
Sakuya Nijoh
July
-
Kakeru Yuiga
September
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Koharu
-
Mikoto Kuga
October
-
Sorata Suzuhara
-
Natsuhiko Azuma
November
-
Itsuki Kagami
December
-
Heishi Otomaru