C: Caption
K: Koupen-chan
Y: Yokoshima Enaga
A: Adelie-san
E: Adult emperor penguin (Otona no Penguin)
P: Polar bear (Shirokuma-san)
If you have any translation requests, please feel free to send me the specific tweet to my Twitter!

Koupen-chan's Friend 6/1/23 Koupen-chan's Friend 6/1/23

Happy Birthday, Adelie-san! (May 25, 2023)

Happy Birthday, Adelie-san!

Koupen-chan's Friend 5/5/23 Koupen-chan's Friend 5/5/23

Happy Birthday, Yokoshima Enaga-san! (April 29th, 2023)

April 29th is Yokoshima Enaga-san’s birthday!

Koupen-chan's Friend 4/24/23 Koupen-chan's Friend 4/24/23

April 23rd is Polar Bear-san’s birthday!

Koupen-chan's Friend 4/4/23 Koupen-chan's Friend 4/4/23

Happy 6th birthday, Koupen-chan! (April 4th, 2023)

Koupen-chan's Friend 4/3/23 Koupen-chan's Friend 4/3/23

Happy birthday, Adult Penguin-san! Their birthday is April 3rd.