Abbreviations
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!
Enoshima Mini-compilation
Take a relaxing train ride from Enoshima Station to Shichirigahama Station and explore the area around Enoshima with Koupen-chan! A compilation of 4 illustrations by Rurutea as well as links to each location shown.
North Kamakura Compilation
Take a stroll through North Kamakura with Koupen-chan! This page includes translations of a handful of illustrations featuring spots in North Kamakura by Rurutea, as well as map links to the actual places so you can explore them yourself!
Happy Birthday, Yokoshima Enaga-san! (April 29th, 2025)
Happy Birthday, Yokoshima Enaga-san! Their birthday is April 29th.
Happy Birthday, Polar Bear-san! (April 23rd, 2025)
Let’s wish Polar Bear-san a happy birthday! Their birthday is April 23rd.
Happy Birthday, Koupen-chan!!!!! (April 4th, 2025)
It’s Koupen-chan’s 8th birthday (anniversary)!
Happy Birthday, Adult Penguin-san! (April 3rd, 2025)
Let’s celebrate Adult Penguin-san’s birthday!
Koupen-chan Gets an Official Anime!!!
Koupen-chan is getting an official anime adaptation! See this post for related translations.
Updated April 2, 2025 with the character introductions and initial broadcasting information.
Pink Koupen-chan (and other color variations)
Yokoshima Enaga-san almost spills the beans about pink Koupen-chan.
This page also features a compilation of other posts about the various colors in which Koupen-chan can be seen.
Koupen-chan & in Jelly Collab
Koupen-chan collaborates with inJelly to bring you a healthy treat!
Koupen-chan Exhibit (2024)
A compilation of tweets and information related to Koupen-chan Exhibit in 2024. This exhibit was originally shown in Ginza, Tokyo in December 2023.
Happy 1st Birthday, Koupen-chan! (April 4th, 2018)
Koupen-chan was created in 2017, so April 4th, 2018 was Koupen-chan’s first birthday!
Your Winter Trip with Koupen-chan
For winter vacation, you go on a trip with Koupen-chan and the others!
Summer Vacation with You and Koupen-chan (2017)
A translation of the tweets titled “Your Summer Vacation with Koupen-chan” posted in 2017 by Rurutea.
Koupen-chan and Chocolate
Koupen-chan learns about and tries white chocolate for the first time.
Adult and Child Compilation
A compilation of digital illustrations featuring Adult Penguin-san and Koupen-chan!
Adult Penguin-san and Koupen-chan Go To Mt. Mitake
Adult Penguin-san and Koupen-chan take a trip to Mt. Mitake (御岳山).
Happy Birthday, Yokoshima Enaga-san!!! (April 29th, 2024)
Happy 7th Birthday, Yokoshima Enaga-…sama!!
Happy Birthday, Polar Bear-san!!! (April 23rd, 2024)
Happy 7th Birthday, Polar Bear-san!!!