Check for characters missing birthday info here.
January
-
Kyоka Tamaki
March
-
Hotaru
April
-
Yawara Naekawa
-
Haru Nabatame
May
-
Itoha Karabayashi
June
-
Miina Hirose
July
-
Nanami Totsuka
August
-
Yukine Giongi
-
Nanoka Hiumi
-
Momiji Itо
September
-
Ren Kurogane
-
Rio Seibu
November
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Aoba Karabayashi