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All stage girls celebrate each other's birthdays
Hikari
Tsukasa
Fumi
Michiru
Kaoruko
Koharu
Ichie
Lalafin
Futaba
Mahiru
Aruru
Yuyuko
Shiori
Nana
Maya
Claudine
Shizuha
Suzu
Mei Fan
Karen
Junna
Misora
Yachiyo
Rui
Tamao
Akira
Hisame
I might find another way to post the screenshots (to consider the storage of server here).